Remove spec with very low value
Remove spec with very low value

This spec was failing the linter, particularly the
RSpec/DescribeClass cop. I think there's a bug in the cop,
but it wasn't worth troubleshooting. I chose to delete the
spec instead of diabling the cop because the spec had
extremely low value.

ifeelgoods/paper_trail,airblade/paper_trail,airblade/paper_trail,ifeelgoods/paper_trail