Automatic merge from submit-queue
Removing call to update-swagger-spec.sh from update-generated-swagger-docs.sh
Fixes https://github.com/kubernetes/kubernetes/issues/24233
Right now `update-generated-swagger-docs.sh` calls `update-swagger-spec.sh`, but `verify-generated-swagger-docs.sh` does not verify swagger spec (that is done by `verify-swagger-spec.sh`).
Hence, `verify-swagger-spec` breaks if it is called after `verify-generated-swagger-docs`.
Fixing it by removing the call to `update-swagger-spec.sh` from `update-generated-swagger-docs.sh`.
This will require users to run both `update-swagger-spec` and `update-generated-swagger-docs` when they update api types, but they already need to run many more scripts (`update-api-reference-docs`, `update-codegen`).
People should mostly be running hack/update-all.sh directly :)