Remove the size override in Glide

The override was not needed. It wasn't in the original code, so I'll remove it for consistency.

android/app/src/main/java/com/audiobookshelf/app/player/CoverImageLoader.kt

@@ -19,7 +19,6 @@ suspend fun resolveUriAsBitmap(context: Context, uri: Uri): Bitmap? {
       Glide.with(context)
         .asBitmap()
         .load(uri)
-        .override(512, 512)
         .placeholder(R.drawable.icon)
         .error(R.drawable.icon)
         .submit()