fix compiler warnings

models/FreeLeeModel.cpp

@@ -63,7 +63,6 @@ void ScaLBL_FreeLeeModel::getData_RegularLayout(const double *data, DoubleArray
 	// Gets data (in optimized layout) from the HOST and stores in regular layout
     // Primarly for debugging
 	int i,j,k,idx;
-    int n;
 
 	// initialize the array
 	regdata.fill(0.f);
@@ -72,7 +71,6 @@ void ScaLBL_FreeLeeModel::getData_RegularLayout(const double *data, DoubleArray
 	for (k=0; k<Nz; k++){
 		for (j=0; j<Ny; j++){
 			for (i=0; i<Nx; i++){
-				n=k*Nx*Ny+j*Nx+i;
 				idx=Map(i,j,k);
 				if (!(idx<0)){
 					value=data[idx];