Make java 8 run-tests runnable on the RI again.

Test: Ran ./run-test --jvm 960

Change-Id: Ib281d7b117e793116137fffcd3b0392b79497503
diff --git a/test/run-test b/test/run-test
index 3ae063a..9569a57 100755
--- a/test/run-test
+++ b/test/run-test
@@ -41,7 +41,7 @@
 fi
 checker="${progdir}/../tools/checker/checker.py"
 export JAVA="java"
-export JAVAC="javac -g -source 1.7 -target 1.7 -Xlint:-options"
+export JAVAC="javac -g -Xlint:-options"
 export RUN="${progdir}/etc/run-test-jar"
 export DEX_LOCATION=/data/run-test/${test_dir}
 export NEED_DEX="true"