I removed the wallpaper from my bathroom about a week ago and then took the popcorn ceiling down. I'm ready to fix the rips I made to the drywall paper when I was taking the wallpaper down but I keep reading to wash the walls down to removal residual glue. I don't see anything on the walls and when I run my hand along the drywall it just feels a little gritty but not sticky. Should I wash the walls with water anyway?