Fixed DatabaseFeatures.requires_literal_defaults on SQLite.
Fixed DatabaseFeatures.requires_literal_defaults on SQLite.

This flag is currently unused on SQLite because it doesn't support
dropping a DEFAULT clause, however it requires literal defaults, rather
than parameterized ones, so we can set it for clarity.

manhhomienbienthuy/django,apollo13/django,auvipy/django,takis/django,MarkusH/django,rsalmaso/django,django/django,dsanders11/django,apollo13/django,django/django,felixxm/django,dsanders11/django,blighj/django,apollo13/django,rsalmaso/django,auvipy/django,solarissmoke/django,solarissmoke/django,felixxm/django,takis/django,pauloxnet/django,monetate/django,pauloxnet/django,blighj/django,solarissmoke/django,takis/django,manhhomienbienthuy/django,apollo13/django,solarissmoke/django,monetate/django,takis/django,manhhomienbienthuy/django,rsalmaso/django,auvipy/django,blighj/django,MarkusH/django,auvipy/django,monetate/django,pauloxnet/django,shaib/django,shaib/django,dsanders11/django,blighj/django,felixxm/django,felixxm/django,rsalmaso/django,shaib/django,django/django,django/django,MarkusH/django,shaib/django,MarkusH/django,pauloxnet/django,dsanders11/django,monetate/django,manhhomienbienthuy/django