Move failing tests to target/host failing category.

Both these tests timeout on host and target.

Test: run-libcore-tests on gcstress
Change-Id: I5845b79dd85dae3ce3ab5914761fc54b8f1da4f0
diff --git a/tools/libcore_gcstress_debug_failures.txt b/tools/libcore_gcstress_debug_failures.txt
index a42f479..2193189 100644
--- a/tools/libcore_gcstress_debug_failures.txt
+++ b/tools/libcore_gcstress_debug_failures.txt
@@ -8,9 +8,7 @@
   description: "Timeouts on target with gcstress and debug.",
   result: EXEC_FAILED,
   modes: [device],
-  names: ["jsr166.CompletableFutureTest#testCompleteOnTimeout_completed",
-          "jsr166.CompletableFutureTest#testDelayedExecutor",
-          "jsr166.ExecutorsTest#testTimedCallable",
+  names: ["jsr166.ExecutorsTest#testTimedCallable",
           "jsr166.RecursiveActionTest#testJoinIgnoresInterruptsOutsideForkJoinPool",
           "libcore.java.lang.ref.ReferenceQueueTest#testRemoveWithDelayedResultAndTimeout",
           "libcore.java.text.DecimalFormatTest#testWhitespaceError",
@@ -69,8 +67,9 @@
 {
   description: "Time-sensitive test fails check of elapsed time with gcstress",
   result: EXEC_FAILED,
-  modes: [host],
   bug: 205007075,
-  names: ["jsr166.CompletableFutureTest#testCompleteOnTimeout_completed"]
+  names: ["jsr166.CompletableFutureTest#testCompleteOnTimeout_completed",
+          "jsr166.CompletableFutureTest#testDelayedExecutor"
+         ]
 }
 ]