No longer restrict to -source 1.5 since it causes a warning with 1.7

(cherry picked from commit e17838ffedee1796920636c2f99c933aa1ce4b3c)

Change-Id: Ied11738da9621280185a62f267a5d527e6ed927b
diff --git a/test/run-test b/test/run-test
index cc15e58..8ff0915 100755
--- a/test/run-test
+++ b/test/run-test
@@ -36,7 +36,7 @@
 tmp_dir="/tmp/${test_dir}"
 
 export JAVA="java"
-export JAVAC="javac -g -source 1.5 -target 1.5"
+export JAVAC="javac -g"
 export RUN="${progdir}/etc/push-and-run-test-jar"
 export DEX_LOCATION=/data/run-test/${test_dir}
 export NEED_DEX="true"