Remove usage of _.uniq

[MrDroid1]

📝 Description

🎯 Relevant issues

issue:750

💎 Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

🏁 Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• I have commented my code, particularly in hard-to-understand areas

[icebob]

Would be better if you add a uniq method to utils (similar to other lodash compatible functions) and use it in the codes.

[icebob]

Good job!

[icebob]

Please resolve conficts