Refactor Service code out of main ActivityManagerService class.

Change-Id: I83ade73b48e8fda1ad413634c1eb0dba2a545ca7
diff --git a/services/java/com/android/server/am/ActivityStack.java b/services/java/com/android/server/am/ActivityStack.java
index a1ff9c4..c9a633e 100755
--- a/services/java/com/android/server/am/ActivityStack.java
+++ b/services/java/com/android/server/am/ActivityStack.java
@@ -3902,7 +3902,7 @@
             Iterator<ConnectionRecord> it = r.connections.iterator();
             while (it.hasNext()) {
                 ConnectionRecord c = it.next();
-                mService.removeConnectionLocked(c, null, r);
+                mService.mServices.removeConnectionLocked(c, null, r);
             }
             r.connections = null;
         }