Cleanup/fixes.

common/modules/promises.jsm

@@ -61,24 +61,6 @@ var Promises = Module("Promises", {
         mainThread.dispatch(accept, mainThread.DISPATCH_NORMAL);
     }),
 
-    /**
-     * Returns a promise which resolves with the given argument.
-     */
-    accept: function fail(arg) {
-        let deferred = Promise.defer();
-        deferred.resolve(arg);
-        return deferred.promise;
-    },
-
-    /**
-     * Returns a promise which fails with the given argument.
-     */
-    fail: function fail(arg) {
-        let deferred = Promise.defer();
-        deferred.reject(arg);
-        return deferred.promise;
-    },
-
     /**
      * Returns a promise which resolves after the given number of
      * milliseconds.