Removed old unused processString method

system/src/Grav/Common/Twig.php

@@ -181,24 +181,6 @@ public function processPage(Page $item, $content = null)
         return $output;
     }
 
-    /**
-     * @param string $string  string to render.
-     * @param array $vars     Optional variables
-     * @return string
-     */
-    public function processString($string, array $vars = array())
-    {
-        // override the twig header vars for local resolution
-        $this->grav->fireEvent('onTwigStringVariables');
-        $vars += $this->twig_vars;
-
-        $name = '@Var:' . $string;
-        $this->setTemplate($name, $string);
-        $output = $this->twig->render($name, $vars);
-
-        return $output;
-    }
-
     /**
      * Twig process that renders the site layout. This is the main twig process that renders the overall
      * page and handles all the layout for the site display.