Update MailerServiceProvider.php
Update MailerServiceProvider.php

- BugFix Removed assignments from if's
- Related to #4764
Raistlfiren/bolt,joshuan/bolt,CarsonF/bolt,joshuan/bolt,CarsonF/bolt,electrolinux/bolt,nikgo/bolt,lenvanessen/bolt,Intendit/bolt,bolt/bolt,Intendit/bolt,electrolinux/bolt,HonzaMikula/masivnipostele,CarsonF/bolt,romulo1984/bolt,Raistlfiren/bolt,romulo1984/bolt,lenvanessen/bolt,Intendit/bolt,romulo1984/bolt,cdowdy/bolt,electrolinux/bolt,rarila/bolt,HonzaMikula/masivnipostele,rarila/bolt,rarila/bolt,GawainLynch/bolt,cdowdy/bolt,GawainLynch/bolt,joshuan/bolt,lenvanessen/bolt,Raistlfiren/bolt,HonzaMikula/masivnipostele,nikgo/bolt,nikgo/bolt,cdowdy/bolt,CarsonF/bolt,lenvanessen/bolt,romulo1984/bolt,nikgo/bolt,Raistlfiren/bolt,Intendit/bolt,GawainLynch/bolt,bolt/bolt,bolt/bolt,rarila/bolt,GawainLynch/bolt,joshuan/bolt,electrolinux/bolt,HonzaMikula/masivnipostele,bolt/bolt,cdowdy/bolt