Enable run-time transfer matrix assembly tests for RT elements

The depended on a recent fix in dune-localfunctions to work properly.

dune/fufem/test/assembletransferoperatortest.cc

@@ -177,9 +177,7 @@ bool testRaviartThomas(const GW0& gw0, const GW1& gw1)
     FieldVector<double,2> testPoint(0);
     auto testPointInFather = element.geometryInFather().global(testPoint);
 
-    // TODO: The run-time test is disabled for the time being, because it requires
-    // https://gitlab.dune-project.org/staging/dune-functions/-/merge_requests/241
-    if ( false && (coarseLocalFunction(testPointInFather) - fineLocalFunction(testPoint) ).two_norm() > 1e-10 )
+    if ( (coarseLocalFunction(testPointInFather) - fineLocalFunction(testPoint) ).two_norm() > 1e-10 )
     {
       std::cerr << "Raviart-Thomas: transfer matrix is not the natural injection!" << std::endl;
       return false;