Update gcstress & debug expectations.

Remove duplicate expectation entry
Blacklist 050-sync

bug: 117597114
Change-Id: Ica134b0a2a4dcf1fb0c32e1df7675d8174c506df
diff --git a/test/knownfailures.json b/test/knownfailures.json
index e27a4d6..d67b234 100644
--- a/test/knownfailures.json
+++ b/test/knownfailures.json
@@ -1099,5 +1099,11 @@
         "tests": ["454-get-vreg", "457-regs"],
         "variant": "baseline",
         "description": ["Tests are expected to fail with baseline."]
+    },
+    {
+        "tests": ["050-sync-test"],
+        "variant": "target & gcstress & debug",
+        "bug": "b/117597114",
+        "description": ["Looks timing dependent"]
     }
 ]
diff --git a/tools/libcore_gcstress_debug_failures.txt b/tools/libcore_gcstress_debug_failures.txt
index b8ad955..23533af 100644
--- a/tools/libcore_gcstress_debug_failures.txt
+++ b/tools/libcore_gcstress_debug_failures.txt
@@ -45,8 +45,7 @@
     "libcore.libcore.icu.RelativeDateTimeFormatterTest#test_getRelativeTimeSpanStringAbbrev",
     "libcore.libcore.icu.RelativeDateTimeFormatterTest#test_getRelativeTimeSpanStringCTS",
     "libcore.libcore.icu.RelativeDateTimeFormatterTest#test_getRelativeTimeSpanStringFrench",
-    "libcore.libcore.icu.RelativeDateTimeFormatterTest#test_getRelativeTimeSpanStringGerman",
-    "org.apache.harmony.tests.java.lang.ProcessManagerTest#testSleep"
+    "libcore.libcore.icu.RelativeDateTimeFormatterTest#test_getRelativeTimeSpanStringGerman"
   ]
 }
 ]