[BUG]Not able to remove gateways after removing it from the code. #839

Release version

v6.0.1.1

Describe the bug

In the api code, if we add the gateway, we are able to see the gateway in apim.
If we delete the gateway in api code, the gateway is not getting deleted.

Expected behavior

Under artifacts -> gateways -> gateway name -> apis -> yourapi --> Gateway is added in apim api collection..
Under artifacts -> gateways -> gateway name -> apis -> yourapi [remove this one] --> Gateway should be removed from apim api collection

Actual behavior

Under artifacts -> gateways -> gateway name -> apis -> yourapi --> Gateway is added in apim api collection.. [working as expected]
Under artifacts -> gateways -> gateway name -> apis -> yourapi [remove this one] --> Gateway is not getting removed from apim api collection

Reproduction Steps

Under artifacts -> gateways -> gateway name -> apis -> yourapi --> Gateway is added in apim api collection.. [working as expected]
Under artifacts -> gateways -> gateway name -> apis -> yourapi [remove this one] --> Gateway is not getting removed from apim api collection