Revert " DNM: update Dockerfile from changes in openshift#1498"

This reverts commit 57f7494.

extensions/Dockerfile

@@ -9,28 +9,16 @@ ADD . .
 ARG COSA
 ARG VARIANT
 RUN if [[ -z "$COSA" ]] ; then ci/get-ocp-repo.sh ; fi
-# On SCOS, we need to add the GPG keys of the various SIGs we need
-RUN if rpm -q centos-stream-release; then \
-        if [[ $(rpm -q --qf "%{VERSION}" centos-stream-release) == "9.0" ]]; then \
-            if ! rpm -q centos-release-cloud; then \
-                dnf install -y centos-release-{cloud,nfv,virt}-common; \
-            fi && \
-            mkdir -p /usr/share/distribution-gpg-keys/centos && \
-            ln -s /etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial /usr/share/distribution-gpg-keys/centos/RPM-GPG-KEY-CentOS-Official && \
-            ln -s {/etc/pki/rpm-gpg,/usr/share/distribution-gpg-keys/centos}/RPM-GPG-KEY-CentOS-SIG-Cloud && \
-            ln -s {/etc/pki/rpm-gpg,/usr/share/distribution-gpg-keys/centos}/RPM-GPG-KEY-CentOS-SIG-Extras-SHA512 && \
-            ln -s {/etc/pki/rpm-gpg,/usr/share/distribution-gpg-keys/centos}/RPM-GPG-KEY-CentOS-SIG-NFV && \
-            ln -s {/etc/pki/rpm-gpg,/usr/share/distribution-gpg-keys/centos}/RPM-GPG-KEY-CentOS-SIG-Virtualization ; \
-        fi ; \
-    fi
-RUN if [[ -n "${VARIANT}" ]]; then \
-        MANIFEST="manifest-${VARIANT}.yaml"; \
-        EXTENSIONS="extensions-${VARIANT}.yaml"; \
-    else \
-        MANIFEST="manifest.yaml"; \
-        EXTENSIONS="extensions.yaml"; \
-    fi && \
-    rpm-ostree compose extensions --rootfs=/ --output-dir=/usr/share/rpm-ostree/extensions/ ./"${MANIFEST}" ./"${EXTENSIONS}"
+# on SCOS, we need to add the GPG keys of the various SIGs we need
+RUN if rpm -q centos-stream-release && ! rpm -q centos-release-cloud; then dnf install -y centos-release-{cloud,nfv,virt}-common; fi
+RUN mkdir -p /usr/share/distribution-gpg-keys/centos
+RUN ln -s /etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial /usr/share/distribution-gpg-keys/centos/RPM-GPG-KEY-CentOS-Official
+RUN ln -s {/etc/pki/rpm-gpg,/usr/share/distribution-gpg-keys/centos}/RPM-GPG-KEY-CentOS-SIG-Cloud
+RUN ln -s {/etc/pki/rpm-gpg,/usr/share/distribution-gpg-keys/centos}/RPM-GPG-KEY-CentOS-SIG-Extras-SHA512
+RUN ln -s {/etc/pki/rpm-gpg,/usr/share/distribution-gpg-keys/centos}/RPM-GPG-KEY-CentOS-SIG-NFV
+RUN ln -s {/etc/pki/rpm-gpg,/usr/share/distribution-gpg-keys/centos}/RPM-GPG-KEY-CentOS-SIG-Virtualization
+RUN if [[ -n "${VARIANT}" ]]; then MANIFEST="manifest-${VARIANT}.yaml"; EXTENSIONS="extensions-${VARIANT}.yaml"; else MANIFEST="manifest.yaml"; EXTENSIONS="extensions.yaml"; fi && rpm-ostree compose extensions --rootfs=/ --output-dir=/usr/share/rpm-ostree/extensions/ ./"${MANIFEST}" ./"${EXTENSIONS}"
+
 ## Creates the repo metadata for the extensions.
 ## This uses Fedora as a lowest-common-denominator because it will work on
 ## current p8/s390x. See https://github.com/openshift/os/issues/1000