Remove duplicate test expectation entries on gcstress

This CL removes some of the duplicated test expectations entries as all
they are already present in libcore_failures.txt.

Bug: 208639267
Test: vogar --mode=device \
      --expectations art/tools/libcore_failures.txt \
      --expectations art/tools/libcore_gcstress_failures.txt \
      jsr166
Change-Id: I0111fe91f7b60a3e1e6312a788c1d8178f5eb646
diff --git a/tools/libcore_gcstress_failures.txt b/tools/libcore_gcstress_failures.txt
index 55bba72..81d6ca0 100644
--- a/tools/libcore_gcstress_failures.txt
+++ b/tools/libcore_gcstress_failures.txt
@@ -36,7 +36,6 @@
           "libcore.java.util.stream.CollectorsTest#counting_largeStream",
           "org.apache.harmony.tests.java.lang.ref.ReferenceQueueTest#test_remove",
           "org.apache.harmony.tests.java.lang.String2Test#test_getBytes",
-          "org.apache.harmony.tests.java.math.BigIntegerConstructorsTest#testConstructorPrime",
           "org.apache.harmony.tests.java.text.DateFormatTest#test_getAvailableLocales",
           "org.apache.harmony.tests.java.util.TimerTest#testOverdueTaskExecutesImmediately",
           "org.apache.harmony.tests.java.util.WeakHashMapTest#test_keySet_hasNext"]