Fixing compile warnings

tests/TestMap.cpp

@@ -56,11 +56,7 @@ int main(int argc, char **argv)
 	    int Nx = db->getVector<int>( "n" )[0];
 	    int Ny = db->getVector<int>( "n" )[1];
 	    int Nz = db->getVector<int>( "n" )[2];
-	    int nprocx = db->getVector<int>( "nproc" )[0];
-	    int nprocy = db->getVector<int>( "nproc" )[1];
-	    int nprocz = db->getVector<int>( "nproc" )[2];
-
-		std::shared_ptr<Domain> Dm(new Domain(db,comm));
+		auto Dm = std::make_shared<Domain>(db,comm);
 
 		Nx += 2;
 		Ny += 2;