revert: Revert "fix(iOS): pause player on suspend or stalled if extra…

… buffer is available (#6199)" (#6373)

This reverts commit c791cd8.

Fixes #6330

src/js/tech/html5.js

@@ -111,10 +111,6 @@ class Html5 extends Tech {
     // into a `fullscreenchange` event
     this.proxyWebkitFullscreen_();
 
-    if (browser.IS_IOS) {
-      this.handleIOSHeadphonesDisconnection_();
-    }
-
     this.triggerReady();
   }
 
@@ -208,50 +204,6 @@ class Html5 extends Tech {
     });
   }
 
-  /**
-   * Handle IOS Headphone disconnection during playback
-   *
-   * @private
-  */
-  handleIOSHeadphonesDisconnection_() {
-    // Fudge factor to account for TimeRanges rounding
-    const TIME_FUDGE_FACTOR = 1 / 30;
-
-    // Comparisons between time values such as current time and the end of the buffered range
-    // can be misleading because of precision differences or when the current media has poorly
-    // aligned audio and video, which can cause values to be slightly off from what you would
-    // expect. This value is what we consider to be safe to use in such comparisons to account
-    // for these scenarios.
-    const SAFE_TIME_DELTA = TIME_FUDGE_FACTOR * 3;
-
-    // If iOS check if we have a real stalled or supend event or
-    // we got stalled/suspend due headphones where disconnected during playback
-    this.on(['stalled', 'suspend'], (e) => {
-      const buffered = this.buffered();
-
-      if (!buffered.length) {
-        return;
-      }
-
-      let extraBuffer = false;
-      const currentTime = this.currentTime();
-
-      // Establish if we have an extra buffer in the current time range playing.
-      for (let i = 0; i < buffered.length; i++) {
-        if (buffered.start(i) <= currentTime &&
-          currentTime < buffered.end(i) + SAFE_TIME_DELTA) {
-          extraBuffer = true;
-          break;
-        }
-      }
-
-      // if tech is not paused, browser has internet connection & player has extraBuffer inside the timeRange
-      if (extraBuffer && !this.paused() && window.navigator.onLine) {
-        this.pause();
-      }
-    });
-  }
-
   /**
    * Attempt to force override of tracks for the given type
    *