[PL/BC/PhaseField] Rm unused var. pos.

ProcessLib/BoundaryCondition/PhaseFieldIrreversibleDamageOracleBoundaryCondition.cpp

@@ -22,8 +22,6 @@ void PhaseFieldIrreversibleDamageOracleBoundaryCondition::getEssentialBCValues(
     const double /*t*/, GlobalVector const& /*x*/,
     NumLib::IndexValueVector<GlobalIndexType>& bc_values) const
 {
-    ParameterLib::SpatialPosition pos;
-
     bc_values.ids.clear();
     bc_values.values.clear();