Remove no longer needed echo

closes #121

Author: tedivm

src/JShrink/Minifier.php

@@ -205,7 +205,6 @@ protected function initialize($js, $options)
 
 
     protected function echo($char) {
-        echo($char);
         $this->output .= $char;
         $this->last_char = $char[-1];
     }