Revert "New failure due to a junit/vogar difference."

This reverts commit 203a5555957f4c56c4a5cc7ffcb99600c8ab557e.

Change-Id: I51c3aa7275ab43b4adaf8728245612b8416c8284
diff --git a/tools/libcore_failures.txt b/tools/libcore_failures.txt
index d1eba61..8ce19dd 100644
--- a/tools/libcore_failures.txt
+++ b/tools/libcore_failures.txt
@@ -11,8 +11,8 @@
 {
   description: "Assert.java differences between vogar and junit.",
   result: EXEC_FAILED,
-  names: ["libcore.java.math.RunCSVTests#test_csv",
-          "org.apache.harmony.tests.java.util.HashMapTest#test_EntrySet"]
+  modes: [host],
+  name: "libcore.java.math.RunCSVTests#test_csv"
 },
 {
   description: "Differences between vogar and cts in user directory",