overlay coreos/config: Drop split-usr workarounds for sys-apps/kmod

sdk_container/src/third_party/coreos-overlay/coreos/config/env/sys-apps/kmod

@@ -1,20 +0,0 @@
-# sbin and bin are still separate directories and the build system of
-# kmod puts the tool symlinks into bin, whereas most places that use
-# absolute paths to the tools expect them to be in sbin. Move them
-# there. This can be removed if we merge bin and sbin directories
-# (likely to happen when we migrate to 23.0 profiles).
-cros_post_src_install_move_kmod_tools_symlinks() {
-    local kmod tool
-
-    # path to kmod relative to sbin
-    if [[ -x "${ED}/usr/sbin/kmod" ]]; then
-        kmod=kmod
-    else
-        kmod=../bin/kmod
-    fi
-    mkdir -p "${ED}/usr/sbin"
-    for tool in modprobe rmmod insmod depmod; do
-        rm -f "${ED}/usr/bin/${tool}" "${ED}/bin/${tool}"
-        ln -sf "${kmod}" "${ED}/usr/sbin/${tool}"
-    done
-}