Removed code that removed <code> tag

fixes paquettg#60

Author: paquettg

src/PHPHtmlParser/Dom.php

@@ -390,9 +390,6 @@ protected function clean($str)
             $str = mb_eregi_replace("<\s*style\s*>(.*?)<\s*/\s*style\s*>", '', $str);
         }
 
-        // strip out preformatted tags
-        $str = mb_eregi_replace("<\s*(?:code)[^>]*>(.*?)<\s*/\s*(?:code)\s*>", '', $str);
-
         // strip out server side scripts
         $str = mb_eregi_replace("(<\?)(.*?)(\?>)", '', $str);
 

tests/DomTest.php

@@ -302,4 +302,11 @@ public function testBeforeClosingTag()
 		$dom->load("<div class=\"stream-container \"  > <div class=\"stream-item js-new-items-bar-container\"> </div> <div class=\"stream\">");
 		$this->assertEquals("<div class=\"stream-container \"> <div class=\"stream-item js-new-items-bar-container\"> </div> <div class=\"stream\"></div></div>", (string) $dom);
 	}
+
+	public function testCodeTag()
+	{
+		$dom = new Dom;
+		$dom->load('<strong>hello</strong><code class="language-php">$foo = "bar";</code>');
+		$this->assertEquals('<strong>hello</strong><code class="language-php">$foo = "bar";</code>', (string) $dom);
+	}
 }