refactor(VideoPlayer): 移除网络速度显示覆盖层注释代码

@@ -31,7 +31,7 @@
       @pause="handlePause"
     />
 
-    <div v-if="showNetworkSpeedOverlay && !showErrorOverlay" class="speed-overlay">
+    <!-- <div v-if="showNetworkSpeedOverlay && !showErrorOverlay" class="speed-overlay">
       <div class="speed-content">
         <div
           class="speed-title"
@@ -43,7 +43,7 @@
           {{ networkSpeedText.includes("Mbps") ? `当前网速：${networkSpeedText}` : `当前网络：${networkSpeedText}` }}
         </div>
       </div>
-    </div>
+    </div> -->
 
     <div v-if="hlsDownloadSpeedText" class="hls-speed-badge">{{ hlsDownloadSpeedText }}</div>
     <div v-if="props.debug" class="hls-debug-badge">