Remove an unnessary wp_normalize_path() in Abstract_File_Check::get_f…

…iles().

This probably should have been removed in #592, but was forgotten.

includes/Checker/Checks/Abstract_File_Check.php

@@ -311,7 +311,7 @@ private static function get_files( Check_Context $plugin ) {
 				}
 
 				if ( $include_file ) {
-					self::$file_list_cache[ $location ][] = wp_normalize_path( $file_path );
+					self::$file_list_cache[ $location ][] = $file_path;
 				}
 			}
 		}