Remove OAS API key calculation based on non-existent 'slug' attribute

[mcsuka]

Remove incorrect map key calculation

Description

the 'slug' value does not exist for OAS APIs

There is an ongoing discussion related to this issue with Carlos Villanúa carlos@tyk.ioand Josh Blakeley josh@tyk.io Please note, I did not apply changes made by format-check and linting, because they are irrelevant to my fix.

Related Issue

N/A

Motivation and Context

tyk-sync sync was deleting OAS APIs from the cloud dashboard

Test Coverage For This Change

manually tested there are no unit tests in this repo

Screenshots (if appropriate)

Types of changes

• [x ] 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 change)

Checklist

• [x] Make sure you are requesting to pull a topic/feature/bugfix branch (right side). If PRing from your fork, don't come from your master!
• [x] Make sure you are making a pull request against our master branch (left side). Also, it would be best if you started your change off our latest master.
• [ ] My change requires a change to the documentation.
  • [ ] I have updated the documentation accordingly.
• [ ] I have added tests to cover my changes.
• [ ] All new and existing tests passed.
• [ ] Check your code additions will not fail linting checks:
  • [-] gofmt -s -w .
  • [-] go vet ./...
  • [ ] golangci-lint run

[komalsukhani]

@mcsuka Thank for your contribution! Starting from v2.0 Tyk Sync has become a close source product. This repository will be archived and no longer maintained. We will review all the contributions and think out fixing them in the product.