fix: remove cosign layer since main upstream provides cosign in RPM (#…

…449)

Containerfile

@@ -13,8 +13,6 @@ ARG FEDORA_MAJOR_VERSION="${FEDORA_MAJOR_VERSION}"
 COPY usr /usr
 COPY etc/yum.repos.d/ /etc/yum.repos.d/
 
-COPY --from=cgr.dev/chainguard/cosign:latest /usr/bin/cosign /usr/bin/cosign
-
 RUN wget https://copr.fedorainfracloud.org/coprs/kylegospo/gnome-vrr/repo/fedora-"${FEDORA_MAJOR_VERSION}"/kylegospo-gnome-vrr-fedora-"${FEDORA_MAJOR_VERSION}".repo -O /etc/yum.repos.d/_copr_kylegospo-gnome-vrr.repo
 RUN rpm-ostree override replace --experimental --from repo=copr:copr.fedorainfracloud.org:kylegospo:gnome-vrr mutter mutter-common gnome-control-center gnome-control-center-filesystem xorg-x11-server-Xwayland
 RUN rm -f /etc/yum.repos.d/_copr_kylegospo-gnome-vrr.repo