Remove support for --classpath and make --runtime-init the default.

--classpath hasn't been properly supported or used for as long as
git history exists, and the non --runtime-init classpath is useless
without it.

Also, forking and exec' a bare dalvikvm instance from the zygote seems
somewhat pointless since we might as well just execute it directly.

Change-Id: Ib07d822d448e7b431d7564381f9cd11735fd1113
diff --git a/core/java/android/os/Process.java b/core/java/android/os/Process.java
index 21a9904..4834f97 100644
--- a/core/java/android/os/Process.java
+++ b/core/java/android/os/Process.java
@@ -614,9 +614,9 @@
         synchronized(Process.class) {
             ArrayList<String> argsForZygote = new ArrayList<String>();
 
-            // --runtime-init, --setuid=, --setgid=,
+            // --runtime-args, --setuid=, --setgid=,
             // and --setgroups= must go first
-            argsForZygote.add("--runtime-init");
+            argsForZygote.add("--runtime-args");
             argsForZygote.add("--setuid=" + uid);
             argsForZygote.add("--setgid=" + gid);
             if ((debugFlags & Zygote.DEBUG_ENABLE_JNI_LOGGING) != 0) {