cubicweb #10338709 deprecate SQLGenObjectStore? [validation pending]

it's untested. It seems broken/unused. The massive store should probably be prefered in all cases.

Right?

prioritynormal
typeenhancement
done in3.23.0
load left0.000
closed by#69c17d011f74 [dataimport] Deprecate SQLGenObjectStore
patch[dataimport] Deprecate SQLGenObjectStore [applied]