chore(player): 移除飘心毫秒调试文字

test/player/player_hearts_pixels_test.dart

@@ -50,12 +50,6 @@ void main() {
     expect(firstSize.height, closeTo(48, 1));
     expect(firstSize.width, greaterThan(20));
     expect((initialCenter - origin).distance, lessThanOrEqualTo(1));
-    expect(
-      (tester.getTopLeft(find.byKey(const Key('heart-burst-elapsed-debug'))) -
-              const Offset(308, 556))
-          .distance,
-      lessThanOrEqualTo(1),
-    );
 
     await _pumpHeartTime(tester, clock, const Duration(milliseconds: 300));
     final center300 = tester.getCenter(firstHeart);