RUBY-1126 Remove extra collection variable in test
RUBY-1126 Remove extra collection variable in test

jonhyman/mongo-ruby-driver,mongodb/mongo-ruby-driver,mongodb/mongo-ruby-driver,kay-kim/mongo-ruby-driver,estolfo/mongo-ruby-driver,estolfo/mongo-ruby-driver,jonhyman/mongo-ruby-driver,kay-kim/mongo-ruby-driver,saghm/mongo-ruby-driver,mongodb/mongo-ruby-driver,saghm/mongo-ruby-driver