Quiet down this init script

Change-Id: I007e4e2bb5c0dbad233ed2655cf941d51064d901
diff --git a/prebuilt/common/etc/init.d/06mountdl b/prebuilt/common/etc/init.d/06mountdl
index 748171f..81eec2a 100755
--- a/prebuilt/common/etc/init.d/06mountdl
+++ b/prebuilt/common/etc/init.d/06mountdl
@@ -10,6 +10,6 @@
   mount -o bind /data/local/download /cache/download
 fi
 
-rm /cache/download/downloadfile*.apk
+rm /cache/download/downloadfile*.apk >/dev/null 2>&1
 
 exit 0