move block data extraction into shared loop

no reason to setup the element contexts twice

opm/simulators/flow/EclWriter.hpp

@@ -731,22 +731,13 @@ private:
                 elemCtx.updatePrimaryIntensiveQuantities(/*timeIdx=*/0);
 
                 this->outputModule_->processElement(elemCtx);
+                this->outputModule_->processElementBlockData(elemCtx);
             }
             this->outputModule_->clearExtractors();
 
             this->outputModule_->accumulateDensityParallel();
         }
 
-        {
-            OPM_TIMEBLOCK(prepareBlockData);
-            for (const auto& elem : elements(gridView, Dune::Partitions::interior)) {
-                elemCtx.updatePrimaryStencil(elem);
-                elemCtx.updatePrimaryIntensiveQuantities(/*timeIdx=*/0);
-
-                this->outputModule_->processElementBlockData(elemCtx);
-            }
-        }
-
         {
             OPM_TIMEBLOCK(prepareFluidInPlace);