Revert "Disable libcore tests for now."

Vogar has been fixed.

bug:35308152

This reverts commit b1cde6a6d0101328e683fe07f81d40a1368eaae9.

Change-Id: I2440da0a97561f6794f8827b536481e1a6536c91
diff --git a/tools/run-libcore-tests.sh b/tools/run-libcore-tests.sh
index a96efe7..41faa69 100755
--- a/tools/run-libcore-tests.sh
+++ b/tools/run-libcore-tests.sh
@@ -14,9 +14,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-# Exit as a stop-gap measure for b/35308152.
-exit 0
-
 if [ ! -d libcore ]; then
   echo "Script needs to be run at the root of the android tree"
   exit 1