Remove .spotify_token_cache.json

Spotify support has been removed.

.spotify_token_cache.json

@@ -1 +0,0 @@
-{"access_token":"BQCn2kfkmZmKMzBZhkzXM14b8j76QhDWsnF7_TDhgj9iY4rpdQ7omn9yuK6xpuhxNRGfXiS3tROIayDXqvQ","expires_in":3600,"expires_at":"2021-06-23T19:46:33.681535400Z","refresh_token":null,"scope":""}