fix: sound tooltip might look incorrectly when gets hovered twice

之前的修复已经在 TipsWidget 中确保了其控件本身的尺寸一定正确,不再需
要重新 resize 一次.

PMS: BUG-348963
Log:

Author: BLumia

plugins/dde-dock/sound/soundview.cpp

@@ -53,8 +53,6 @@ SoundView::SoundView(QWidget *parent)
 QWidget *SoundView::tipsWidget()
 {
     refreshTips(true);
-    m_tipsLabel->resize(m_tipsLabel->sizeHint().width() + 10,
-                        m_tipsLabel->sizeHint().height());
 
     return m_tipsLabel;
 }