overlay profiles: Drop accept keywords for app-portage/elt-patches

It was a no-op anyway, forgot to add "~arm64" there.

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

@@ -58,7 +58,6 @@
 =app-emulation/open-vmdk-1.0 *
 
 # Keep versions on both arches in sync.
-=app-portage/elt-patches-20240912
 =app-shells/bash-5.2_p37 ~arm64
 =dev-build/ninja-1.12.1 ~arm64
 =dev-cpp/abseil-cpp-20230125.3-r4 ~arm64