Remove frontend code for security_auto_fix with functionalities

What does this MR do and why?

Remove frontend code for security_auto_fix with functionalities.

Related issue: [Feature flag] Cleanup security_auto_fix (#435432 - closed) • Zamir Martins • 17.0 • Needs attention

Follow-up from: Remove auto fix worker with migration (!147051 - merged) • Zamir Martins • 16.11

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