Revert "Merge branch '239031-yo-remove-avatar-blocked-user' into 'master'"

What does this MR do?

Revert changes introduced by !52051 (merged)

https://sentry.gitlab.net/gitlab/gitlabcom/issues/2471848/?query=is%3Aunresolved%20url%3Ahttps%3A%2F%2Fgitlab.com%2Fgitlab-org%2Fgitlab%2F-%2Fsettings%2Fci_cd

This merge request broke the /-/settings/ci_cd page when there are Pipeline subscriptions defined with projects that are owned by groups: https://docs.gitlab.com/ee/ci/multi_project_pipelines.html#trigger-a-pipeline-when-an-upstream-project-is-rebuilt

• Create namespace A and B, each with it's own project: C and D
• Go to /A/C/-/settings/ci_cd
• Expand Pipeline subscriptions
• Add B/D as a subscription and press the subscribe button.
• undefined method 'blocked?' for #<Group id:192> error should appear.

Screenshots (strongly suggested)

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry
• Documentation (if required)
• Code review guidelines
• Merge request performance guidelines
• Style guides
• Database guides
• Separation of EE specific content

Availability and Testing

• Review and add/update tests for this feature/bug. Consider all test levels. See the Test Planning Process.
• Tested in all supported browsers
• Informed Infrastructure department of a default or new setting change, if applicable per definition of done

Security

If this MR contains changes to processing or storing of credentials or tokens, authorization and authentication methods and other items described in the security review guidelines:

• Label as security and @ mention @gitlab-com/gl-security/appsec
• The MR includes necessary changes to maintain consistency between UI, API, email, or other methods
• Security reports checked/validated by a reviewer from the AppSec team