Added return; statement so it doesn't complain when it receives a remapShader command.

code/cgame/cg_servercmds.c

@@ -1072,6 +1072,8 @@ static void CG_ServerCommand( void ) {
 
 			trap_R_RemapShader(shader1, shader2, shader3);
 		}
+		
+		return;
 	}
 
 	// loaddeferred can be both a servercmd and a consolecmd