Drop NicType.NONE from this PR

The NONE option introduced earlier in this branch is being removed per
review feedback (#4408). Whether to add explicit "None" options across
multiple menus (greeter, gfx driver, network, bootloader) is now being
discussed in #4464 and should land as a separate change there.

This PR keeps only the warning-on-confirm behaviour: when the user
skipped the network menu entirely (network_config is None), a yellow
warning is shown on the final confirmation screen.

archinstall/lib/models/network.py

@@ -12,7 +12,6 @@ class NicType(Enum):
 	NM = 'nm'
 	NM_IWD = 'nm_iwd'
 	MANUAL = 'manual'
-	NONE = 'none'
 
 	def display_msg(self) -> str:
 		match self:
@@ -24,8 +23,6 @@ class NicType(Enum):
 				return tr('Use Network Manager (iwd backend)')
 			case NicType.MANUAL:
 				return tr('Manual configuration')
-			case NicType.NONE:
-				return tr('No network configuration')
 
 
 class _NicSerialization(TypedDict):

archinstall/lib/network/network_handler.py

@@ -37,8 +37,6 @@ def install_network_config(
 				installation.configure_nic(nic)
 			installation.enable_service('systemd-networkd')
 			installation.enable_service('systemd-resolved')
-		case NicType.NONE:
-			pass
 
 
 def _configure_nm_iwd(installation: Installer) -> None:

archinstall/lib/network/network_menu.py

@@ -208,7 +208,5 @@ async def select_network(preset: NetworkConfiguration | None) -> NetworkConfigur
 
 					if nics:
 						return NetworkConfiguration(NicType.MANUAL, nics)
-				case NicType.NONE:
-					return NetworkConfiguration(NicType.NONE)
 
 	return preset

archinstall/locales/uk/LC_MESSAGES/base.po

@@ -486,7 +486,7 @@ msgid "Define users with sudo privilege: "
 msgstr "Визначте користувачів із привілеєм sudo: "
 
 msgid "No network configuration"
-msgstr "Без налаштування мережі"
+msgstr "Відсутня конфігурація мережі"
 
 msgid "Set desired subvolumes on a btrfs partition"
 msgstr "Встановіть потрібні підтома на розділі btrfs"