Remove redundant check

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Автор: boxa


<pre style='white-space:pre-wrap;width:81ex'>Remove redundant check

partialy revert "Remove powerCost from triggered spells"</pre>


Подробнее... (https://github.com/cmangos/mangos-wotlk/commit/1bb1b7f811a4e86438b5a5be8bb1bfe0c0e324b1)