Fixed #30696 -- Removed obsolete mention of CheckConstraint in the AddConstraint docs.
Fixed #30696 -- Removed obsolete mention of CheckConstraint in the AddConstraint docs.

Follow up to 8eae094638acf802c8047b341d126d94bc9b45a3.

manhhomienbienthuy/django,django/django,wkschwartz/django,auvipy/django,claudep/django,atul-bhouraskar/django,adamchainz/django,wkschwartz/django,elena/django,elena/django,pauloxnet/django,simonw/django,manhhomienbienthuy/django,manhhomienbienthuy/django,theo-l/django,pauloxnet/django,felixxm/django,auvipy/django,schinckel/django,django/django,georgemarshall/django,felixxm/django,shaib/django,monetate/django,wkschwartz/django,takis/django,georgemarshall/django,dsanders11/django,django/django,felixxm/django,shaib/django,ghickman/django,googleinterns/django,shaib/django,solarissmoke/django,auvipy/django,schinckel/django,takis/django,theo-l/django,pauloxnet/django,dsanders11/django,adamchainz/django,MarkusH/django,wkschwartz/django,dsanders11/django,ghickman/django,claudep/django,rsalmaso/django,auvipy/django,blighj/django,solarissmoke/django,elena/django,pauloxnet/django,monetate/django,elena/django,googleinterns/django,blighj/django,apollo13/django,freakboy3742/django,solarissmoke/django,dsanders11/django,schinckel/django,kaedroho/django,adamchainz/django,apollo13/django,schinckel/django,adamchainz/django,simonw/django,kaedroho/django,koordinates/django,monetate/django,koordinates/django,googleinterns/django,manhhomienbienthuy/django,atul-bhouraskar/django,theo-l/django,monetate/django,felixxm/django,apollo13/django,blighj/django,kaedroho/django,ghickman/django,apollo13/django,ghickman/django,MarkusH/django,atul-bhouraskar/django,googleinterns/django,atul-bhouraskar/django,rsalmaso/django,theo-l/django,MarkusH/django,simonw/django,georgemarshall/django,claudep/django,takis/django,rsalmaso/django,koordinates/django,solarissmoke/django,claudep/django,rsalmaso/django,georgemarshall/django,freakboy3742/django,shaib/django,simonw/django,takis/django,freakboy3742/django,django/django,blighj/django,koordinates/django,MarkusH/django