Remove FactoryGirl.lint in before(:suite)

We estimate that `lint`ing adds an extra ~300ms on a typical app we work
on for every `rspec` run, even a focused test that only runs one spec.
Until we can find a way to avoid paying that penalty, the discussion
below has landed at not putting it in Suspenders:

https://github.com/thoughtbot/suspenders/pull/299/files#r10642936
Remove before(:suite) block
Raise unpermitted parameters in test environment

Unpermitted parameters were being raised in the development environment
but ignored in the test environment. That can cause specs to pass even
though performing the same steps in development will fail.

This change raises unpermitted parameters in all environments for
parity.