[TD] remove more superfluous nullptr checks

src/Mod/TechDraw/App/GeometryObject.cpp

@@ -494,7 +494,7 @@ void GeometryObject::addGeomFromCompound(TopoDS_Shape edgeCompound, edgeClass ca
         }
 
         base = BaseGeom::baseFactory(edge);
-        if (base == nullptr) {
+        if (!base) {
             Base::Console().Log("Error - GO::addGeomFromCompound - baseFactory failed for edge: %d\n",i);
             continue;
 //            throw Base::ValueError("GeometryObject::addGeomFromCompound - baseFactory failed");