Revert "Blacklist test on host."

This reverts commit b0ba75063008f5896f0616871bd272883bae3083.

Change-Id: I58f7ae208b056279f28ba111f20440de93d13e51
diff --git a/tools/libcore_failures.txt b/tools/libcore_failures.txt
index 15abdb6..f25fb98 100644
--- a/tools/libcore_failures.txt
+++ b/tools/libcore_failures.txt
@@ -253,11 +253,5 @@
   names: ["jsr166.CollectionTest#testEmptyMeansEmpty",
           "jsr166.Collection8Test#testForEach",
           "jsr166.Collection8Test#testForEachConcurrentStressTest"]
-},
-{
-  description: "Test uses a path that does not exist on host",
-  result: EXEC_FAILED,
-  modes: [host],
-  name: "libcore.java.util.zip.ZipFileTest#testOpenDeleteOnExternalStorage"
 }
 ]