Minor fix based on code review

opm/autodiff/StandardWell.hpp

@@ -188,7 +188,6 @@ namespace Opm
         using Base::wellHasTHPConstraints;
         using Base::mostStrictBhpFromBhpLimits;
         using Base::scalingFactor;
-        using Base::updateWellControl;
 
         // protected member variables from the Base class
         using Base::current_step_;