Changes to Remove providers from contract

the rendering_provider_ids/items request property type changed from no type to string, and format from no format to uuid

the response's body type changed from no type to object for status 200

deleted the header request parameter Authorization

the endpoint scheme security OAuthScheme was added to the API

for the path request parameter contract_id, the type was generalized from no type to string, and format from no format to uuid

added the required property provider_count to the response with the 200 status

api operation id remove_contract_providers removed and replaced with v3_remove_contract_providers