Make start/stop warn if you're not root.

Bug: https://code.google.com/p/android/issues/detail?id=165602
Change-Id: Ia1e2de1697d971381b0c949fdaaeff424ab8bf32
diff --git a/toolbox/start.c b/toolbox/start.c
index 6c8a3f2..cca5fef 100644
--- a/toolbox/start.c
+++ b/toolbox/start.c
@@ -1,21 +1 @@
-
-#include <string.h>
-#include <stdio.h>
-#include <stdlib.h>
-
-#include <cutils/properties.h>
-
-int start_main(int argc, char *argv[])
-{
-    if(argc > 1) {
-        property_set("ctl.start", argv[1]);
-    } else {
-        /* defaults to starting the common services stopped by stop.c */
-        property_set("ctl.start", "netd");
-        property_set("ctl.start", "surfaceflinger");
-        property_set("ctl.start", "zygote");
-        property_set("ctl.start", "zygote_secondary");
-    }
-
-    return 0;
-}
+/* Needed by Android.mk. Actual code in start_stop.cpp. */