Fix ability to delete yourself from organization.

[DanilAndreev]

Describe the bug 👀

User must have no ability to delete himself from organization. Especially if user is an organization owner.

How to reproduce 🏃:

1. Go to organization page.
2. Click on user settings.
3. Delete ourself from organization.

Expected behavior 🙌

I must not have ability to do this.

Screenshots ✨

System information

Desktop 💻:

• OS: Windows 10
• Browser Chrome
• Version latest

Smartphone 📱:

• Device: [e.g. iPhone6]
• OS: [e.g. iOS8.1]
• Browser [e.g. stock browser, safari]
• Version [e.g. 22]

Additional context 🌞

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