ao_wasapi: don't repeat format negotiation on align hack

Even if it did return a different result, the bufferFrameCount from the align
hack would be wrong anyway.

audio/out/ao_wasapi_utils.c

@@ -984,11 +984,14 @@ retry:
         EXIT_ON_ERROR(hr);
     }
 
+    // In the event of an align hack, we've already done this.
+    if (!align_hack) {
         MP_DBG(ao, "Probing formats\n");
         if (!find_formats(ao)) {
             hr = E_FAIL;
             EXIT_ON_ERROR(hr);
         }
+    }
 
     MP_DBG(ao, "Fixing format\n");
     hr = fix_format(ao, align_hack);