Remove deprecated function NewFilePlayer

webrtc/modules/utility/include/file_player.h

Index: webrtc/modules/utility/include/file_player.h
diff --git a/webrtc/modules/utility/include/file_player.h b/webrtc/modules/utility/include/file_player.h
index 2797a3d9183ba62de8ac8cd3c64a05ce1a993f83..0020514ab3e1a0cda58a363329f1fe005dd90c23 100644
--- a/webrtc/modules/utility/include/file_player.h
+++ b/webrtc/modules/utility/include/file_player.h
@@ -33,13 +33,6 @@ class FilePlayer {
       const uint32_t instanceID,
       const FileFormats fileFormat);
 
-  // Deprecated. Call CreateFilePlayer instead.
-  static std::unique_ptr<FilePlayer> NewFilePlayer(
-      const uint32_t instanceID,
-      const FileFormats fileFormat) {
-    return CreateFilePlayer(instanceID, fileFormat);
-  }
-
   virtual ~FilePlayer() = default;
 
   // Read 10 ms of audio at |frequencyInHz| to |outBuffer|. |lengthInSamples|