removed 'column display' options as there is no code handling this

function

bin/ansible-doc

@@ -221,11 +221,6 @@ def main():
             default=False,
             dest='list_dir',
             help='List available modules')
-    p.add_option("-c", "--list-columns",
-            action="store_true",
-            default=False,
-            dest='list_columns',
-            help='List modules in columns')
     p.add_option("-s", "--snippet",
             action="store_true",
             default=False,