Bug 1281276 part 3. Drop the one place that uses XPCContext::CallerTypeIsJavaScript() (an assertion). r=bholley

js/xpconnect/src/XPCWrappedNative.cpp

@@ -1356,9 +1356,6 @@ bool
 XPCWrappedNative::CallMethod(XPCCallContext& ccx,
                              CallMode mode /*= CALL_METHOD */)
 {
-    MOZ_ASSERT(ccx.GetXPCContext()->CallerTypeIsJavaScript(),
-               "Native caller for XPCWrappedNative::CallMethod?");
-
     nsresult rv = ccx.CanCallNow();
     if (NS_FAILED(rv)) {
         return Throw(rv, ccx);

js/xpconnect/src/xpcprivate.h

@@ -683,10 +683,6 @@ public:
             mCallingLangType = lt;
             return tmp;
         }
-    bool CallerTypeIsJavaScript() const
-        {
-            return LANG_JS == mCallingLangType;
-        }
     nsresult GetException(nsIException** e)
         {
             nsCOMPtr<nsIException> rval = mException;