Revert hide upgrade button

As title, Revert hide upgrade button since the CustomerDotApp is read only.

Related issue #210

requested review from @qianzhangxa

By Zhu Shung on 2021-10-15T07:37:09 (imported from GitLab)

assigned to @memorycancel

By Zhu Shung on 2021-10-15T07:37:09 (imported from GitLab)

approved this merge request

By Qian Zhang on 2021-10-15T07:39:12 (imported from GitLab)

enabled an automatic merge when the pipeline for a57cbdbd succeeds

By Qian Zhang on 2021-10-15T07:39:15 (imported from GitLab)

	2 Warnings
	Please add a merge request type to this merge request.
	Most of the time, merge requests should target master. Otherwise, please set the relevant Pick into X.Y label.

	1 Message
	CHANGELOG missing: If you want to create a changelog entry for GitLab FOSS, add the Changelog trailer to the commit message you want to add to the changelog. If you want to create a changelog entry for GitLab EE, also add the EE: true trailer to your commit message. If this merge request doesn't need a CHANGELOG entry, feel free to ignore this message.

If needed, you can retry the danger-review job that generated this comment.

Generated by Danger

By DANGER_GITLAB_API_TOKEN on 2021-10-15T07:47:23 (imported from GitLab)

mentioned in commit f37234ab

By Qian Zhang on 2021-10-15T08:41:21 (imported from GitLab)