Parameters should not have both example and examples properties

[irvinesunday]

Generated OpenAPI doc has both example and examples properties in the parameter section of some operations. This is invalid as they are mutually exclusive. This results in an invalid doc.
See OpenAPI documentation: https://swagger.io/docs/specification/adding-examples/

Assemblies affected

1.0.6

Steps to reproduce

Generate the OpenAPI doc. from the CSDL: https://graph.microsoft.com/v1.0/$metadata
Check the path under operationId: groups.group.GetGroup

Expected result

Within this path, under parameters, there should only be one occurrence of either example or examples

Actual result

There are two occurrences of example and examples

Additional detail

Related to: https://github.com/microsoftgraph/microsoft-graph-devx-api/issues/511