Revert "Ignore failures on O devices in some network-related libcore tests."

This reverts commit 3840b34da05248d91bf3d2a7f1c30f7fa0d63891.

Reason for revert: No longer needed, as the ART Buildbot no longer
uses devices running Android Oreo.

Test: art/tools/run-libcore-tests.sh --mode=device
Bug: 74725685
Change-Id: Ifc99137920a6799aa53db0fced27ffda4dc284da
diff --git a/tools/libcore_network_failures.txt b/tools/libcore_network_failures.txt
deleted file mode 100644
index 380f56b..0000000
--- a/tools/libcore_network_failures.txt
+++ /dev/null
@@ -1,92 +0,0 @@
-/*
- * This file contains extra expectations for ART's buildbot regarding network tests.
- * The script that uses this file is art/tools/run-libcore-tests.sh.
- */
-
-[
-{
-  description: "Ignore failure of network-related tests on new devices running Android O",
-  result: EXEC_FAILED,
-  bug: 74725685,
-  modes: [device_testdex],
-  names: ["libcore.libcore.io.OsTest#test_byteBufferPositions_sendto_recvfrom_af_inet",
-          "libcore.libcore.net.NetworkSecurityPolicyTest#testCleartextTrafficPolicyWithFtpURLConnection",
-          "libcore.libcore.net.NetworkSecurityPolicyTest#testCleartextTrafficPolicyWithHttpURLConnection",
-          "libcore.libcore.net.NetworkSecurityPolicyTest#testCleartextTrafficPolicyWithJarFtpURLConnection",
-          "libcore.libcore.net.NetworkSecurityPolicyTest#testCleartextTrafficPolicyWithJarHttpURLConnection",
-          "libcore.libcore.net.NetworkSecurityPolicyTest#testCleartextTrafficPolicyWithLoggingSocketHandler",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_40555",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_ConstructorLjava_io_File",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_ConstructorLjava_io_FileLjava_lang_String",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_ConstructorLjava_io_InputStream",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_ConstructorLjava_io_InputStreamLjava_lang_String",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_ConstructorLjava_lang_Readable",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_ConstructorLjava_lang_String",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_ConstructorLjava_nio_channels_ReadableByteChannel",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_ConstructorLjava_nio_channels_ReadableByteChannelLjava_lang_String",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_ConstructorLjava_nio_file_Path",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_ConstructorLjava_nio_file_PathLjava_lang_String",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_ConstructorLjava_nio_file_PathLjava_lang_String_Exception",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_ConstructorLjava_nio_file_Path_Exception",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_close",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_delimiter",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_findInLine_LPattern",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_findInLine_LString",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_findInLine_LString_NPEs",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_findWithinHorizon_LPatternI",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_hasNext",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_hasNextBigDecimal",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_hasNextBigInteger",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_hasNextBigIntegerI",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_hasNextBigIntegerI_cache",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_hasNextBoolean",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_hasNextByte",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_hasNextByteI",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_hasNextByteI_cache",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_hasNextDouble",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_hasNextFloat",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_hasNextInt",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_hasNextIntI",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_hasNextIntI_cache",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_hasNextLPattern",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_hasNextLString",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_hasNextLine",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_hasNextLine_sequence",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_hasNextLong",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_hasNextLongI",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_hasNextLongI_cache",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_hasNextShort",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_hasNextShortI",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_hasNextShortI_cache",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_ioException",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_locale",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_match",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_next",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_nextBigDecimal",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_nextBigInteger",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_nextBigIntegerI",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_nextBoolean",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_nextByte",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_nextByteI",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_nextDouble",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_nextFloat",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_nextInt",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_nextIntI",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_nextLPattern",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_nextLString",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_nextLine",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_nextLong",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_nextLongI",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_nextShort",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_nextShortI",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_radix",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_remove",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_skip_LPattern",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_skip_LString",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_toString",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_useDelimiter_LPattern",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_useDelimiter_String",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_useLocale_LLocale",
-          "org.apache.harmony.tests.java.util.ScannerTest#test_useRadix_I"]
-}
-]
diff --git a/tools/run-libcore-tests.sh b/tools/run-libcore-tests.sh
index 735549e..85c2c19 100755
--- a/tools/run-libcore-tests.sh
+++ b/tools/run-libcore-tests.sh
@@ -202,16 +202,6 @@
   working_packages+=("libcore.libcore.icu")
 fi
 
-# Disable network-related libcore tests that are failing on the following
-# devices running Android O, as a workaround for b/74725685:
-# - FA7BN1A04406 (walleye device testing configuration aosp-poison/volantis-armv7-poison-debug)
-# - FA7BN1A04412 (walleye device testing configuration aosp-poison/volantis-armv8-poison-ndebug)
-# - FA7BN1A04433 (walleye device testing configuration aosp-poison/volantis-armv8-poison-debug)
-case "$ANDROID_SERIAL" in
-  (FA7BN1A04406|FA7BN1A04412|FA7BN1A04433)
-    expectations="$expectations --expectations art/tools/libcore_network_failures.txt";;
-esac
-
 # Run the tests using vogar.
 echo "Running tests for the following test packages:"
 echo ${working_packages[@]} | tr " " "\n"