spec(remove_log): stubs->activerecord
spec(remove_log): stubs->activerecord

Using factories without including Support::ActiveRecord causes the database
cleaner not to run after the test, which leaves extra record in the database and
sometimes breaks other tests depending on their order.

None of the tests seem to use the DB specs, so I removed them from these tests.

travis-ci/travis-core,kidaa/travis-core,jantman/travis-core,developerfm/travis-core,GistIcon/travis-core,final-ci/travis-core,GistIcon/travis-core,travis-ci/travis-core,kidaa/travis-core,GistIcon/travis-core,travis-ci/travis-core,Tiger66639/travis-core,final-ci/travis-core,jantman/travis-core,developerfm/travis-core,Tiger66639/travis-core,kidaa/travis-core,Tiger66639/travis-core,developerfm/travis-core,final-ci/travis-core