lyrics: Re-disable Genius backend

As #1854 pointed out, the Genius API service is down *again*.

beetsplug/lyrics.py

@@ -537,7 +537,7 @@ class Google(Backend):
 
 
 class LyricsPlugin(plugins.BeetsPlugin):
-    SOURCES = ['google', 'lyricwiki', 'lyrics.com', 'musixmatch', 'genius']
+    SOURCES = ['google', 'lyricwiki', 'lyrics.com', 'musixmatch']
     SOURCE_BACKENDS = {
         'google': Google,
         'lyricwiki': LyricsWiki,

docs/changelog.rst

@@ -55,6 +55,9 @@ Fixes:
   some versions of pyOpenSSL. :bug:`1805`
 * :doc:`/plugins/replaygain`: Fix an intermittent crash with the GStreamer
   backend. :bug:`1855`
+* :doc:`/plugins/lyrics`: In a continuing saga, the Genius API we use is down
+  again, so it's been disabled by default *again*. We'll probably leave it
+  disabled this time.
 
 .. _beets.io: http://beets.io/
 .. _Beetbox: https://github.com/beetbox

docs/plugins/lyrics.rst

@@ -52,10 +52,9 @@ configuration file. The available options are:
   sources known to be scrapeable.
 - **sources**: List of sources to search for lyrics. An asterisk ``*`` expands
   to all available sources.
-  Default: ``google lyricwiki lyrics.com musixmatch genius``, i.e., all
-  sources.
-  The `google` source will be automatically deactivated if no
-  ``google_API_key`` is setup.
+  Default: ``google lyricwiki lyrics.com musixmatch``, i.e., all the
+  sources except for `genius`. The `google` source will be automatically
+  deactivated if no ``google_API_key`` is setup.
 
 Here's an example of ``config.yaml``::