remove find_and_modify test from t/collection.t
remove find_and_modify test from t/collection.t

The new methods are covered better in t/crud.t

dagolden/mongo-perl-driver,dagolden/mongo-perl-driver,jorol/mongo-perl-driver,gormanb/mongo-perl-driver,rahuldhodapkar/mongo-perl-driver,xdg/mongo-perl-driver,jorol/mongo-perl-driver,rahuldhodapkar/mongo-perl-driver,kainwinterheart/mongo-perl-driver,rahuldhodapkar/mongo-perl-driver,mongodb/mongo-perl-driver,dagolden/mongo-perl-driver,gormanb/mongo-perl-driver,jorol/mongo-perl-driver,dagolden/mongo-perl-driver,mongodb/mongo-perl-driver,xdg/mongo-perl-driver,kainwinterheart/mongo-perl-driver,rahuldhodapkar/mongo-perl-driver,xdg/mongo-perl-driver,mongodb/mongo-perl-driver,gormanb/mongo-perl-driver,jorol/mongo-perl-driver,gormanb/mongo-perl-driver,kainwinterheart/mongo-perl-driver,kainwinterheart/mongo-perl-driver