systemd: remove patch

patches/systemd/0001-core-unit-reset-freezer-state-on-inactive-failed.patch

@@ -1,48 +0,0 @@
-From: Simon Gardling <titaniumtown@proton.me>
-Date: 2026-04-21
-Subject: [PATCH] core/unit: reset freezer state when unit becomes inactive/failed
-
-When a frozen unit is killed via anything that delivers SIGKILL outside
-systemd's normal deactivation path (`systemctl kill --signal=KILL`,
-`kill -9`, the OOM killer, a segfault), the service transitions to
-failed or inactive correctly, but `u->freezer_state` is never reset.
-This leaves the unit permanently stuck at FreezerState=frozen:
-
-  - `systemctl thaw` refuses with "Unit is not active".
-  - `systemctl start`/`restart` refuses with
-    "Cannot perform operation on frozen unit".
-  - `reset-failed`, `daemon-reload`, `daemon-reexec`, and `revert` do
-    not clear the state.
-
-The only way to recover a persistent unit in this state is to reboot.
-
-Reset the freezer state to FREEZER_RUNNING whenever a unit transitions
-to an inactive or failed state, and cancel any pending freeze/thaw dbus
-reply that will never complete. The cgroup is pruned immediately after
-this point, so there is nothing left to freeze; the "running" state is
-the correct neutral state for a dead unit. On restart, the unit will
-pick up its freezer state from the cgroup hierarchy again.
-
-This complements PR #38528 (stop/reset watchdog on freeze/thaw) by
-addressing the general SIGKILL path instead of just the watchdog-
-initiated kill.
----
---- a/src/core/unit.c
-+++ b/src/core/unit.c
-@@ -2754,6 +2754,16 @@
-                 SET_FLAG(u->markers,
-                          (1u << UNIT_MARKER_NEEDS_RELOAD)|(1u << UNIT_MARKER_NEEDS_RESTART),
-                          false);
-+
-+                /* If the unit was frozen (or in a freezer transition) when it became inactive/failed,
-+                 * reset the freezer state to running. The cgroup is about to be pruned; leaving the
-+                 * state stuck at frozen would prevent the unit from ever being started, thawed, or
-+                 * cleared without rebooting PID 1. Also cancel any pending freeze/thaw dbus reply. */
-+                if (u->freezer_state != FREEZER_RUNNING) {
-+                        unit_set_freezer_state(u, FREEZER_RUNNING);
-+                        (void) bus_unit_send_pending_freezer_message(u, /* canceled= */ true);
-+                }
-+
-                 unit_prune_cgroup(u);
-                 unit_unlink_state_files(u);
-         } else if (ns != os && ns == UNIT_RELOADING)