ART: Fix erroneous output

Make run-tests quiet.

Change-Id: I80da9ac04fa95a4094dee874c8703ea563acc1ee
diff --git a/test/etc/push-and-run-prebuilt-test-jar b/test/etc/push-and-run-prebuilt-test-jar
index df9c0d5..2b9604b 100755
--- a/test/etc/push-and-run-prebuilt-test-jar
+++ b/test/etc/push-and-run-prebuilt-test-jar
@@ -26,8 +26,6 @@
 TARGET_SUFFIX=""
 COMPILE_FLAGS=""
 
-echo "$@"
-
 while true; do
     if [ "x$1" = "x--quiet" ]; then
         QUIET="y"