Bug 5094 - Code cleanup, patch by Zack Middleton and DevHC. Fixes unused-but-set gcc warnings

code/renderer/tr_image.c

@@ -1098,14 +1098,11 @@ R_CreateFogImage
 static void R_CreateFogImage( void ) {
 	int		x,y;
 	byte	*data;
-	float	g;
 	float	d;
 	float	borderColor[4];
 
 	data = ri.Hunk_AllocateTempMemory( FOG_S * FOG_T * 4 );
 
-	g = 2.0;
-
 	// S is distance, T is depth
 	for (x=0 ; x<FOG_S ; x++) {
 		for (y=0 ; y<FOG_T ; y++) {