Update removed-backward-incompatibility.md

Author: laoneo

migrations/54-60/removed-backward-incompatibility.md

@@ -232,7 +232,6 @@ If you need UTF8-compatible string functions from PHP, have a look at the [jooml
 ```php
 // Old:
 $table = Table::getInstance('content');
-```
 
 // New:
 $table = new \Joomla\CMS\Table\Content($db);