Remove foreign key and primary key types for now
Remove foreign key and primary key types for now

ContinuumIO/datashape,cowlicks/datashape,blaze/datashape,cpcloud/datashape,cpcloud/datashape,ContinuumIO/datashape,blaze/datashape,cowlicks/datashape,quantopian/datashape,quantopian/datashape