Remove _convert_urlencoded_to_entities() from the get_the_content() callback.

Merges [45937] to the 4.8 branch.

Props vortfu, whyisjake, peterwilsoncc

Built from https://develop.svn.wordpress.org/branches/4.8@45949


git-svn-id: http://core.svn.wordpress.org/branches/4.8@45760 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/post-template.php

@@ -324,25 +324,9 @@ function get_the_content( $more_link_text = null, $strip_teaser = false ) {
 		}
 	}
 
-	if ( $preview ) // Preview fix for JavaScript bug with foreign languages.
-		$output =	preg_replace_callback( '/\%u([0-9A-F]{4})/', '_convert_urlencoded_to_entities', $output );
-
 	return $output;
 }
 
-/**
- * Preview fix for JavaScript bug with foreign languages.
- *
- * @since 3.1.0
- * @access private
- *
- * @param array $match Match array from preg_replace_callback.
- * @return string
- */
-function _convert_urlencoded_to_entities( $match ) {
-	return '&#' . base_convert( $match[1], 16, 10 ) . ';';
-}
-
 /**
  * Display the post excerpt.
  *