[cleanup]Avoid deprecated interfaces from the core modules

This replaces several deprecated interfaces from the core modules by their newer analogues.

dune/fufem/assemblers/localassemblers/secondorderoperatorassembler.hh

@@ -9,7 +9,6 @@
 #include <dune/common/fvector.hh>
 #include <dune/common/fmatrix.hh>
 #include <dune/common/hybridutilities.hh>
-#include <dune/common/std/apply.hh>
 #include <dune/common/concept.hh>
 
 #include <dune/istl/matrix.hh>
@@ -38,7 +37,7 @@ namespace Concept {
 
         template<class F>
         auto require(F&& f) -> decltype(
-            Dune::Std::apply(f, args)
+            std::apply(f, args)
         );
     };
 
@@ -54,7 +53,7 @@ namespace Concept {
 
         template<class F>
         auto require(F&& f) -> decltype(
-            Dune::MatrixVector::addProduct(r, s, Dune::Std::apply(f, args))
+            Dune::MatrixVector::addProduct(r, s, std::apply(f, args))
         );
     };
 
@@ -255,7 +254,7 @@ public:
                     };
                     Dune::MatrixVector::addProduct(
                         localMatrix[i][j], z,
-                        Dune::Std::apply(boundContraction, returnValues));
+                        std::apply(boundContraction, returnValues));
                 }
             }
         }