Revert "all: Use ->remove() instead of ->outertext = ''"

This reverts commit 052844f5e1.

There is a bug in ->remove() that causes the parser to incorrectly
identify elements in the DOM tree that shouldn't exist anymore.

References #1151

bridges/WorldOfTanksBridge.php

@@ -44,7 +44,7 @@ class WorldOfTanksBridge extends FeedExpander {
 
 		// Remove the scripts, please
 		foreach($content->find('script') as $script) {
-			$script->remove();
+			$script->outertext = '';
 		}
 
 		return $content->innertext;