Revert "Merge pull request #283 from neutralinsomniac/fix_hourly_chime_background"

This reverts commit 5c94111ea2, reversing
changes made to bc9b4ce700.

movement/watch_faces/clock/simple_clock_face.c

@@ -136,11 +136,17 @@ bool simple_clock_face_loop(movement_event_t event, movement_settings_t *setting
         case EVENT_BACKGROUND_TASK:
             // uncomment this line to snap back to the clock face when the hour signal sounds:
             // movement_move_to_face(state->watch_face_index);
-            #ifdef SIGNAL_TUNE_DEFAULT
-            movement_play_signal();
-            #else
-            movement_play_tune();
-            #endif
+            if (watch_is_buzzer_or_led_enabled()) {
+                // if we are in the foreground, we can just beep.
+                movement_play_signal();
+            } else {
+                // if we were in the background, we need to enable the buzzer peripheral first,
+                watch_enable_buzzer();
+                // beep quickly (this call blocks for 275 ms),
+                movement_play_signal();
+                // and then turn the buzzer peripheral off again.
+                watch_disable_buzzer();
+            }
             break;
         default:
             return movement_default_loop_handler(event, settings);