Remove unused variables

Hopefully this doesn't cause any regressions.

The last submitted patch, 2: views-n3386717-2.patch, failed testing. View results →
- codesniffer_fixes.patch Interdiff of automated coding standards fixes only.

Please review.

Thanks

I've changed a little bit the ticket title and description.
Also prepared a patch to remove unused variables in the code. Just code refactoring.
Needs review.

Great work once again @tibezh

Committed. Thanks everyone.

Automatically closed - issue fixed for 2 weeks with no activity.

Hm. After this commit views_handler_area_result is broken 'cause all variables referenced later with curly braces syntax were removed....