Revert "TST: Add sqlalchemy to test requirements"
Revert "TST: Add sqlalchemy to test requirements"

This reverts commit 94532bd826e0c76d0116e92adadc185fcf235aa3.

kwinkunks/geopandas,micahcochran/geopandas,micahcochran/geopandas,geopandas/geopandas,snario/geopandas,fonnesbeck/geopandas,jdmcbr/geopandas,ozak/geopandas,scw/geopandas,geopandas/geopandas,maxalbert/geopandas,IamJeffG/geopandas,urschrei/geopandas,jdmcbr/geopandas,koldunovn/geopandas,geopandas/geopandas,jorisvandenbossche/geopandas,jorisvandenbossche/geopandas,perrygeo/geopandas,jorisvandenbossche/geopandas,ozak/geopandas