Remove references to the openaApiPath in the Quarkus Dev UI extensions in kie-tools

[pefernan]

Both jbpm-quarkus-devui & sonataflow-quarkus-devui are using the Kogito application openapi.json in order to read the Process/Workflows definitions. Due to this, they require a specific openapiPath to help building the URL to the openapi.json

Recently both devui's started using a GraphQL query to read the definitions & endpoints list this configuration is no longer needed and should be removed.

[thiagoelg]

Reopening as apache/incubator-kie-tools#2536 only tackles JBPM DevUI

[fantonangeli]

@pefernan @thiagoelg I think this issue can be closed as it has been done in these PRs:

• kie-issues#1173: Retrieve workflow definitions from data index instead of openapi.json incubator-kie-tools#2302
• kie-issues#1276: Reuse components and retrieve workflow definitions from data index instead of openapi.json in sonataflow-deployment-webapp incubator-kie-tools#2537

I just double-checked now and the openapi.json is only consumed for the json schema to generate the form.

[pefernan]

@fantonangeli yea, that task was more to do a cleanup on the Dev-UI apis because they were still referencing to the openapi path, but now I see they have been removed so I'm ok to close.