Remove expired port:

2020-12-30 audio/py-gmusicapi: Google Play Music is going away: simon-weber/gmusicapi#673


git-svn-id: svn+ssh://svn.freebsd.org/ports/head@559648 35697150-7ecd-e111-bb59-0022644237b5

Author: rene0

MOVED

@@ -15818,3 +15818,4 @@ devel/py-ydbf||2020-12-29|Has expired: Uses deprecated version of python
 devel/py-SymbolType||2020-12-29|Has expired: Uses deprecated version of python
 databases/py-MySQLdb||2020-12-29|Has expired: Uses deprecated version of python
 net/py-libfte||2020-12-29|Has expired: Uses deprecated version of python
+audio/py-gmusicapi||2020-12-30|Has expired: Google Play Music is going away: https://github.com/simon-weber/gmusicapi/issues/673

audio/Makefile

@@ -661,7 +661,6 @@
     SUBDIR += py-discogs-client
     SUBDIR += py-eyed3
     SUBDIR += py-fmoo-audiotools
-    SUBDIR += py-gmusicapi
     SUBDIR += py-gtts
     SUBDIR += py-hsaudiotag3k
     SUBDIR += py-mpd