fix typo

app/src/main/java/org/schabi/newpipe/player/BackgroundPlayer.java

@@ -397,8 +397,8 @@ public void onShuffleClicked() {
         }
 
         @Override
-        public void onMuteUnmuteButtonClicled() {
-            super.onMuteUnmuteButtonClicled();
+        public void onMuteUnmuteButtonClicked() {
+            super.onMuteUnmuteButtonClicked();
             updatePlayback();
         }
 

app/src/main/java/org/schabi/newpipe/player/BasePlayer.java

@@ -542,7 +542,7 @@ public void onShuffleClicked() {
     // Mute / Unmute
     //////////////////////////////////////////////////////////////////////////*/
 
-    public void onMuteUnmuteButtonClicled() {
+    public void onMuteUnmuteButtonClicked() {
         if (DEBUG) Log.d(TAG, "onMuteUnmuteButtonClicled() called");
         simpleExoPlayer.setVolume(isMuted() ? 1 : 0);
     }

app/src/main/java/org/schabi/newpipe/player/MainVideoPlayer.java

@@ -693,8 +693,8 @@ public void onPlayBackgroundButtonClicked() {
         }
 
         @Override
-        public void onMuteUnmuteButtonClicled() {
-            super.onMuteUnmuteButtonClicled();
+        public void onMuteUnmuteButtonClicked() {
+            super.onMuteUnmuteButtonClicked();
             setMuteButton(muteButton, playerImpl.isMuted());
         }
 
@@ -736,7 +736,7 @@ public void onClick(View v) {
                 onPlayBackgroundButtonClicked();
 
             } else if (v.getId() == muteButton.getId()) {
-                onMuteUnmuteButtonClicled();
+                onMuteUnmuteButtonClicked();
 
             } else if (v.getId() == closeButton.getId()) {
                 onPlaybackShutdown();

app/src/main/java/org/schabi/newpipe/player/PopupVideoPlayer.java

@@ -609,8 +609,8 @@ public void onShuffleClicked() {
         }
 
         @Override
-        public void onMuteUnmuteButtonClicled() {
-            super.onMuteUnmuteButtonClicled();
+        public void onMuteUnmuteButtonClicked() {
+            super.onMuteUnmuteButtonClicked();
             updatePlayback();
         }
 

app/src/main/java/org/schabi/newpipe/player/ServicePlayerActivity.java

@@ -23,7 +23,6 @@
 import android.widget.ProgressBar;
 import android.widget.SeekBar;
 import android.widget.TextView;
-import android.widget.Toast;
 
 import com.google.android.exoplayer2.PlaybackParameters;
 import com.google.android.exoplayer2.Player;
@@ -453,7 +452,7 @@ public void onClick(View view) {
             player.onRepeatClicked();
 
         } else if (view.getId() == muteButton.getId()) {
-            player.onMuteUnmuteButtonClicled();
+            player.onMuteUnmuteButtonClicked();
 
         } else if (view.getId() == backwardButton.getId()) {
             player.onPlayPrevious();