Refactor ArenaBitVector to create more general BitVector

Change-Id: Ib26f2884de9ce7d620048bdf5ed6dec639622e41
diff --git a/compiler/utils/dedupe_set_test.cc b/compiler/utils/dedupe_set_test.cc
index 03d8b96..2c6787b 100644
--- a/compiler/utils/dedupe_set_test.cc
+++ b/compiler/utils/dedupe_set_test.cc
@@ -19,10 +19,6 @@
 
 namespace art {
 
-class DedupeSetTest : public testing::Test {
- public:
-};
-
 class DedupeHashFunc {
  public:
   size_t operator()(const std::vector<uint8_t>& array) const {
@@ -35,7 +31,7 @@
     return hash;
   }
 };
-TEST_F(DedupeSetTest, Test) {
+TEST(DedupeSetTest, Test) {
   Thread* self = Thread::Current();
   typedef std::vector<uint8_t> ByteArray;
   DedupeSet<ByteArray, size_t, DedupeHashFunc> deduplicator("test");