Revert "Suppress ArrayDequeTest#testForEachRemaining temporarily."

This reverts commit 98c38e34357a73c46ad7a735dd23da0ba29a2963.

Fixed by commit 3de87b847fa94cce9beaf5b225404c1bc7ec475f.

Change-Id: If38f1e67dd8504055236bb8a9703d8c2eb61d16c
diff --git a/tools/libcore_failures.txt b/tools/libcore_failures.txt
index fab4599..46100ae 100644
--- a/tools/libcore_failures.txt
+++ b/tools/libcore_failures.txt
@@ -270,10 +270,5 @@
   description: "Only work with --mode=activity",
   result: EXEC_FAILED,
   names: [ "libcore.java.io.FileTest#testJavaIoTmpdirMutable" ]
-},
-{
-  description: "Temporary suppressing while test is fixed",
-  result: EXEC_FAILED,
-  names: [ "org.apache.harmony.tests.java.util.ArrayDequeTest#test_forEachRemaining_iterator" ]
 }
 ]