install.sh: drop symlink warning for /boot/config.txt.

This file was changed from a symlink to a "DO NOT EDIT" real file in:

RPi-Distro/pi-gen@a125344

Author: Gadgetoid

install.sh

@@ -58,11 +58,6 @@ find_config() {
 		if [ ! -f "$CONFIG_DIR/$CONFIG_FILE" ]; then
 			fatal "Could not find $CONFIG_FILE!"
 		fi
-	else
-		if [ -f "/boot/$CONFIG_FILE" ] && [ ! -L "/boot/$CONFIG_FILE" ]; then
-			warning "Oops! It looks like /boot/$CONFIG_FILE is not a link to $CONFIG_DIR/$CONFIG_FILE"
-			warning "You might want to fix this!"
-		fi
 	fi
 	inform "Using $CONFIG_FILE in $CONFIG_DIR"
 }