[Choreo] Fix intelligent routing availability after deleting and re-creating an API

[chathuranga95]

Purpose

This PR,

• Removes unwanted minor version based intelligent routing regex building for the envoy router
• Fixes a bug where the vhost is neglected on API undeployment

Issues

Addresses: https://github.com/wso2-enterprise/choreo/issues/28419

Automation tests

• Unit tests added: No
• Integration tests added: No

Tested environments

OS: Mac 14.3
Go: 1.22.1
Java: 11.0.19

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Maintainers: Check before merge

• Assigned 'Type' label
• Assigned the project
• Validated respective github issues
• Assigned milestone to the github issue(s)

[choreo-cicd]

[succeeded] Controlplane cluster : dev-deployment-v2 : 20240514.28

[choreo-cicd]

[succeeded] Dataplane(EastUS) cluster : dev-deployment-v2 : 20240514.28

[choreo-cicd]

[succeeded] Dataplane(NorthEU) cluster : dev-deployment-v2 : 20240514.28

[choreo-cicd]

[succeeded] : dev-deployment-v2 : 20240514.28

[choreo-cicd]

[failed] Dataplane(NorthEU) cluster : stage-deployment-v2 : 20240516.1

[choreo-cicd]

[failed] Dataplane(EastUS) cluster : stage-deployment-v2 : 20240516.1

[choreo-cicd]

[failed] Controlplane cluster : stage-deployment-v2 : 20240516.1

[choreo-cicd]

[failed] Dataplane(NorthEU) cluster : stage-deployment-v2 : 20240516.1

[choreo-cicd]

[failed] Dataplane(EastUS) cluster : stage-deployment-v2 : 20240516.1

[choreo-cicd]

[succeeded] Controlplane cluster : stage-deployment-v2 : 20240516.1

[choreo-cicd]

[succeeded] Dataplane(EastUS) cluster : stage-deployment-v2 : 20240516.1

[choreo-cicd]

[succeeded] Controlplane cluster : stage-deployment-v2 : 20240516.1

[choreo-cicd]

[succeeded] Dataplane(NorthEU) cluster : stage-deployment-v2 : 20240516.1

[choreo-cicd]

[] Dataplane(CDP2-WU2) cluster : stage-deployment-v2 : 20240516.2

[choreo-cicd]

[] Dataplane(CDP2-WU2) cluster : stage-deployment-v2 : 20240516.2

[choreo-cicd]

[] Controlplane cluster : stage-deployment-v2 : 20240516.2

[choreo-cicd]

[succeeded] Controlplane cluster : prod-deployment-v2 : 20240517.2

[choreo-cicd]

[succeeded] Controlplane cluster : prod-deployment-v2 : 20240517.2

[choreo-cicd]

[canceled] Dataplane(EastUS) cluster : prod-deployment-v2 : 20240517.2

[choreo-cicd]

[canceled] Dataplane(EastUS) cluster : prod-deployment-v2 : 20240517.2

[choreo-cicd]

[] Dataplane(NorthEU) cluster : prod-deployment-v2 : 20240517.3

[choreo-cicd]

[] Dataplane(NorthEU) cluster : prod-deployment-v2 : 20240517.3

[choreo-cicd]

[] Dataplane(CDP2-WU2) cluster : prod-deployment-v2 : 20240517.3

[choreo-cicd]

[] Dataplane(CDP2-WU2) cluster : prod-deployment-v2 : 20240517.3

[choreo-cicd]

[] Controlplane cluster : prod-deployment-v2 : 20240517.3

[choreo-cicd]

[] Controlplane cluster : prod-deployment-v2 : 20240517.3