diff --git a/src/wp-admin/includes/post.php b/src/wp-admin/includes/post.php
index 86ba666f38..790b736cdf 100644
--- a/src/wp-admin/includes/post.php
+++ b/src/wp-admin/includes/post.php
@@ -1329,18 +1329,10 @@ function get_sample_permalink_html( $id, $new_title = null, $new_slug = null ) {
 			$return .= '<span id="change-permalinks"><a href="options-permalink.php" class="button button-small" target="_blank">' . __('Change Permalinks') . "</a></span>\n";
 		}
 	} else {
-		if ( function_exists( 'mb_strlen' ) ) {
-			if ( mb_strlen( $post_name ) > 34 ) {
-				$post_name_abridged = mb_substr( $post_name, 0, 16 ) . '&hellip;' . mb_substr( $post_name, -16 );
-			} else {
-				$post_name_abridged = $post_name;
-			}
+		if ( mb_strlen( $post_name ) > 34 ) {
+			$post_name_abridged = mb_substr( $post_name, 0, 16 ) . '&hellip;' . mb_substr( $post_name, -16 );
 		} else {
-			if ( strlen( $post_name ) > 34 ) {
-				$post_name_abridged = substr( $post_name, 0, 16 ) . '&hellip;' . substr( $post_name, -16 );
-			} else {
-				$post_name_abridged = $post_name;
-			}
+			$post_name_abridged = $post_name;
 		}
 
 		$post_name_html = '<span id="editable-post-name">' . esc_html( $post_name_abridged ) . '</span>';