remove theme manager in favor of theme selector in preferences.

meson_post_install.py

@@ -6,7 +6,6 @@ import subprocess
 
 prefix = os.environ.get('MESON_INSTALL_PREFIX', '/usr/local')
 datadir = os.path.join(prefix, 'share')
-with_thememan = sys.argv[1] == 'true'
 
 # Packaging tools define DESTDIR and this isn't needed for them
 if 'DESTDIR' not in os.environ:
@@ -17,8 +16,3 @@ if 'DESTDIR' not in os.environ:
     print('Updating desktop database...')
     subprocess.call(['update-desktop-database', '-q',
                      os.path.join(datadir, 'applications')])
-
-    if with_thememan:
-        print('Updating mime database...')
-        subprocess.call(['update-mime-database',
-                         os.path.join(datadir, 'mime')])