package.accept_keywords: remove runc-1.1.9 unmask

runc-1.1.9 is now cosidered stable upstream so there's no need to
explicitly unmask the package in our profile.

Signed-off-by: Thilo Fromm <thilofromm@microsoft.com>

Author: t-lo

sdk_container/src/third_party/coreos-overlay/profiles/coreos/base/package.accept_keywords

@@ -11,7 +11,6 @@
 =app-containers/cri-tools-1.27.0 ~amd64 ~arm64
 =app-containers/docker-24.0.6 ~amd64 ~arm64
 =app-containers/docker-cli-24.0.6 ~amd64 ~arm64
-=app-containers/runc-1.1.9 ~amd64 ~arm64
 
 # Seems to be the only available ebuild in portage-stable right now.
 =app-crypt/adcli-0.9.2 ~amd64 ~arm64