[jquery] Remove Promise1.

Promise1 is not being used.

types/jquery/index.d.ts

@@ -4670,16 +4670,6 @@ declare namespace JQuery {
         UR, UJ, UN,
         never, never, never> { }
 
-    /**
-     * This object provides a subset of the methods of the Deferred object (then, done, fail, always,
-     * pipe, progress, state and promise) to prevent users from changing the state of the Deferred.
-     *
-     * @see {@link http://api.jquery.com/Types/#Promise}
-     */
-    interface Promise1<TR, TJ, TN> extends Promise3<TR, TJ, TN,
-        never, never, never,
-        never, never, never> { }
-
     /**
      * This object provides a subset of the methods of the Deferred object (then, done, fail, always,
      * pipe, progress, state and promise) to prevent users from changing the state of the Deferred.