Docs: Remove & prefixes from parameter documentation to avoid doc parsing errors.

Props sudar for the original patch.

See #35974


git-svn-id: https://develop.svn.wordpress.org/trunk@41686 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-includes/class.wp-styles.php

@@ -111,7 +111,7 @@ class WP_Styles extends WP_Dependencies {
 		 *
 		 * @since 2.6.0
 		 *
-		 * @param WP_Styles &$this WP_Styles instance, passed by reference.
+		 * @param WP_Styles $this WP_Styles instance (passed by reference).
 		 */
 		do_action_ref_array( 'wp_default_styles', array(&$this) );
 	}