drop using statement for flowPhaseToEbosCompIdx

rather qualify member function calls with this->

opm/simulators/wells/StandardWell.hpp

@@ -262,7 +262,6 @@ namespace Opm
 
     protected:
         // protected functions from the Base class
-        using Base::flowPhaseToEbosCompIdx;
         using Base::flowPhaseToEbosPhaseIdx;
         using Base::ebosCompIdxToFlowCompIdx;
         using Base::wsalt;

opm/simulators/wells/StandardWell_impl.hpp

@@ -2451,7 +2451,7 @@ namespace Opm
             // Note: E100's notion of PI value phase mobility includes
             // the reciprocal FVF.
             const auto connMob =
-                mobility[ flowPhaseToEbosCompIdx(p) ].value()
+                mobility[ this->flowPhaseToEbosCompIdx(p) ].value()
                     * fs.invB(flowPhaseToEbosPhaseIdx(p)).value();
 
             connPI[p] = connPICalc(connMob);