Remove some useless comments.

Author: niconoe-

src/Lexer.php

@@ -364,7 +364,6 @@ private function solveAmbiguityOnStarOperator()
     {
         $iBak = $this->list->idx;
         while (null !== ($starToken = $this->list->getNextOfTypeAndValue(Token::TYPE_OPERATOR, '*'))) {
-            //$starTokenIndex = $this->list->idx;
             // ::getNext already gets rid of whitespaces and comments.
             $next = $this->list->getNext();
             if ($next !== null) {
@@ -376,9 +375,7 @@ private function solveAmbiguityOnStarOperator()
                     $starToken->flags = Token::FLAG_OPERATOR_SQL;
                 }
             }
-            //$this->list->idx = $starTokenIndex;
         }
-        // Reset the current index in the list.
         $this->list->idx = $iBak;
     }