Make ActiveRecord delete/destroy_by argument a rest parameters

[caleb]

Motivation

The delete_by and destroy_by ActiveRecord methods take multiple arguments (like where) instead of a single argument.

Implementation

I just replaced create_param with create_rest_param and updated the tests

Tests

I updated the tests to expect the rest argument instead of a single argument

[rafaelfranca]

I can't see the tests changes. Did you forget to push?

[caleb]

@rafaelfranca Ha! Yeah, it's there now.

[paracycle]

Looks good to me, thanks for fixing this.