alpine: remove deb/ubuntu-only resource & storage checks from update_script

check_container_storage uses 'df /boot --output=size' which is unsupported by
BusyBox df on Alpine and /boot is not a separate partition there. Both
helpers are designed for Debian/Ubuntu hosts only.

Affected: alpine-ntfy, alpine-rustypaste, alpine-ironclaw, alpine-redlib.

Fixes #14163

ct/alpine-ironclaw.sh

@@ -21,8 +21,6 @@ catch_errors
 
 function update_script() {
   header_info
-  check_container_storage
-  check_container_resources
 
   if [[ ! -f /usr/local/bin/ironclaw ]]; then
     msg_error "No ${APP} Installation Found!"

ct/alpine-ntfy.sh

@@ -22,8 +22,6 @@ catch_errors
 
 function update_script() {
   header_info
-  check_container_storage
-  check_container_resources
   if [[ ! -d /etc/ntfy ]]; then
     msg_error "No ${APP} Installation Found!"
     exit

ct/alpine-redlib.sh

@@ -21,7 +21,6 @@ catch_errors
 
 function update_script() {
   header_info
-  check_container_resources
 
   if [[ ! -d /opt/redlib ]]; then
     msg_error "No ${APP} Installation Found!"

ct/alpine-rustypaste.sh

@@ -21,8 +21,6 @@ catch_errors
 
 function update_script() {
   header_info
-  check_container_storage
-  check_container_resources
 
   if ! apk info -e rustypaste >/dev/null 2>&1; then
     msg_error "No ${APP} Installation Found!"