PSR2/ControlStructureSpacing: don't listen for T_ELSE

No functional changes.

This sniff only concerns itself with control structures which take parentheses, so listening for `T_ELSE` is unnecessary as the sniff will never do anything for that token (it bows out on no 'parenthesis_opener'/'parenthesis_closer' found).

Author: jrfnl

src/Standards/PSR2/Sniffs/ControlStructures/ControlStructureSpacingSniff.php

@@ -44,7 +44,6 @@ public function register()
             T_FOREACH,
             T_FOR,
             T_SWITCH,
-            T_ELSE,
             T_ELSEIF,
             T_CATCH,
             T_MATCH,