workflows: remove bump-nocache-line GH workflow
This was needed before but now we are building COSA uniformly across
all architectures [1] using the build-cosa Jenkins job. All of them
are currently using `--no-cache`.
[1]
@@ -10,7 +10,7 @@ RUN rm -rfv /usr/lib/coreos-assembler /usr/bin/coreos-assembler
COPY ./src/print-dependencies.sh ./src/deps*.txt ./src/vmdeps*.txt ./src/build-deps.txt /root/containerbuild/src/
COPY ./build.sh /root/containerbuild/
RUN ./build.sh configure_yum_repos
-RUN ./build.sh install_rpms # nocache 07/28/22
+RUN ./build.sh install_rpms
RUN ./build.sh install_ocp_tools
# This allows Prow jobs for other projects to use our cosa image as their
