removed tests because they're now tested by core
removed tests because they're now tested by core

theangryangel/activerecord-sqlserver-adapter,pavels/activerecord-sqlserver-adapter,jcyang75/activerecord-sqlserver-adapter,rhryniow/activerecord-sqlserver-adapter,andretf/activerecord-sqlserver-adapter,0x00evil/activerecord-sqlserver-adapter,mcdba/activerecord-sqlserver-adapter,rails-sqlserver/activerecord-sqlserver-adapter,Wirachmat/activerecord-sqlserver-adapter,TLmaK0/activerecord-sqlserver-adapter,andretf/activerecord-sqlserver-adapter,mcdba/activerecord-sqlserver-adapter,rails-sqlserver/activerecord-sqlserver-adapter,jahanzaibbahadur/activerecord-sqlserver-adapter,faisalmansoor/activerecord-sqlserver-adapter,NCSAAthleticRecruiting/activerecord-sqlserver-adapter