new metering spec (#3742)

Author: Guaris

api-specs/konnect/metering-and-billing/v3/openapi.yaml

@@ -52,10 +52,6 @@ paths:
           $ref: '#/components/responses/Unauthorized'
         '403':
           $ref: '#/components/responses/Forbidden'
-        '500':
-          $ref: '#/components/responses/Internal'
-        '503':
-          $ref: '#/components/responses/NotAvailable'
       tags:
         - Metering Events
 components:
@@ -458,18 +454,6 @@ components:
           examples:
             UnauthorizedExample:
               $ref: '#/components/examples/ForbiddenExample'
-    Internal:
-      description: Internal
-      content:
-        application/problem+json:
-          schema:
-            $ref: '#/components/schemas/BaseError'
-    NotAvailable:
-      description: Service not available
-      content:
-        application/problem+json:
-          schema:
-            $ref: '#/components/schemas/BaseError'
   securitySchemes:
     systemAccountAccessToken:
       type: http