Remove unnecessary 'unused-ignore' mypy directives (#4395)

The directives were added because a PR branch accidentally lagged
behind master and did not contain the mypy python_version bump from
commit 0175949.

This fixes commit d70e03f.

Author: correctmost

archinstall/lib/installer.py

@@ -2008,7 +2008,7 @@ def set_keyboard_language(self, language: str) -> bool:
 			# In accordance with https://github.com/archlinux/archinstall/issues/107#issuecomment-841701968
 			# Setting an empty keymap first, allows the subsequent call to set layout for both console and x11.
 			with Boot(self.target) as session:
-				os.system('systemd-run --machine=archinstall --pty localectl set-keymap ""')  # type: ignore[deprecated, unused-ignore]
+				os.system('systemd-run --machine=archinstall --pty localectl set-keymap ""')  # type: ignore[deprecated]
 
 				try:
 					session.SysCommand(['localectl', 'set-keymap', language])
@@ -2074,7 +2074,7 @@ def _service_state(self, service_name: str) -> str:
 
 
 def accessibility_tools_in_use() -> bool:
-	return os.system('systemctl is-active --quiet espeakup.service') == 0  # type: ignore[deprecated, unused-ignore]
+	return os.system('systemctl is-active --quiet espeakup.service') == 0  # type: ignore[deprecated]
 
 
 def run_custom_user_commands(commands: list[str], installation: Installer) -> None:

archinstall/scripts/guided.py

@@ -188,7 +188,7 @@ def perform_installation(
 				case PostInstallationAction.EXIT:
 					pass
 				case PostInstallationAction.REBOOT:
-					_ = os.system('reboot')  # type: ignore[deprecated, unused-ignore]
+					_ = os.system('reboot')  # type: ignore[deprecated]
 				case PostInstallationAction.CHROOT:
 					try:
 						installation.drop_to_shell()

archinstall/tui/curses_menu.py

@@ -1310,7 +1310,7 @@ def print(
 		clear_screen: bool = False,
 	) -> None:
 		if clear_screen:
-			os.system('clear')  # type: ignore[deprecated, unused-ignore]
+			os.system('clear')  # type: ignore[deprecated]
 
 		if Tui._t is None:
 			print(text, end=endl)
@@ -1355,7 +1355,7 @@ def _main_loop[ValueT](self, component: AbstractCurses[ValueT]) -> Result[ValueT
 		return component.kickoff(self._screen)
 
 	def _reset_terminal(self) -> None:
-		os.system('reset')  # type: ignore[deprecated, unused-ignore]
+		os.system('reset')  # type: ignore[deprecated]
 
 	def _set_up_colors(self) -> None:
 		curses.init_pair(STYLE.NORMAL.value, curses.COLOR_WHITE, curses.COLOR_BLACK)