app-containers/podman: remove unused patch

Signed-off-by: Michael Mair-Keimberger <mm1ke@gentoo.org>

app-containers/podman/files/podman-5.2.5-togglable-seccomp.patch

@@ -1,10 +0,0 @@
---- a/Makefile
-+++ b/Makefile
-@@ -56,7 +56,6 @@ BUILDTAGS ?= \
-	$(shell hack/systemd_tag.sh) \
-	$(shell hack/libsubid_tag.sh) \
-	exclude_graphdriver_devicemapper \
--	seccomp
- # allow downstreams to easily add build tags while keeping our defaults
- BUILDTAGS += ${EXTRA_BUILDTAGS}
- # N/B: This value is managed by Renovate, manual changes are