Remove assertions from flux reconstruction functions

The constructors properly initialize the asserted objects. There is
no point in the code where they can be replaced by empty/null pointers.

dune/dorie/model/richards/richards.hh

@@ -559,10 +559,6 @@ public:
 			gf_ptr = std::make_unique<GFFluxReconstruction>(
 									this->_log,gv,inifile.sub("fluxReconstruction"));
 
-			assert(fboundary);
-			assert(fparam);
-			assert(slop);
-
 			slop->setTime(state.time);
 
 			// update it with the state
@@ -579,10 +575,6 @@ public:
 			cache = std::make_unique<GFFluxReconstruction>(
 									this->_log,gv,inifile.sub("fluxReconstruction"));
 
-			assert(fboundary);
-			assert(fparam);
-			assert(slop);
-
 			// update it with current state
 			cache->update(*u,*gfs,*slop);
 

dune/dorie/model/transport/transport.hh

@@ -488,9 +488,6 @@ public:
 
         gf_ptr = std::make_unique<GFFluxReconstruction>(
                         this->_log,gv,inifile.sub("fluxReconstruction"));
-
-        assert(sboundary);
-        assert(slop);
         
         slop->setTime(state.time);
 
@@ -505,9 +502,6 @@ public:
 
         cache = std::make_unique<GFFluxReconstruction>(
                         this->_log,gv,inifile.sub("fluxReconstruction"));
-
-        assert(sboundary);
-        assert(slop);
         
         slop->setTime(state.time);