Update test flakes list

Removes two tests that have been fixed:

o ExplicitCastArgumenstTest#testMultipleArgs
o OsTest#test_socket_setSockoptTimeval_effective

Bug: 209958457
Bug: 216667550
Fix: 217356401
Test: Rely on ART MTS ATP test runs
Change-Id: I446eeda790d0f8bb9e9f14b9e9c5d6e22c7a6474
diff --git a/test/utils/regen-test-files b/test/utils/regen-test-files
index 468d92a..47b867d 100755
--- a/test/utils/regen-test-files
+++ b/test/utils/regen-test-files
@@ -279,11 +279,6 @@
      )
 ] + [
     ("CtsLibcoreTestCases" +
-     " libcore.android.system.OsTest#" + m) for m in [
-         "test_socket_setSockoptTimeval_effective",
-    ]
-] + [
-    ("CtsLibcoreTestCases" +
      " libcore.dalvik.system.DelegateLastClassLoaderTest#" + m) for m in [
          "testLookupOrderNodelegate_getResource",
          "testLookupOrder_getResource",
@@ -302,11 +297,6 @@
          "ToArrayOpTest#testDistinctAndSortedPermutations",
          "ToArrayOpTest#testLongDistinctAndSortedPermutations",
     ]
-] + [
-    ("CtsLibcoreOjTestCases" +
-     " test.java.lang.invoke.ExplicitCastArgumenstTest#" + m) for m in [
-         "testMultipleArgs",
-    ]
 ]
 
 # Is `run_test` a Checker test (i.e. a test containing Checker