The contract AuthorizationServerSecretsContract is specifically des…

…igned to List secrets on POST operation (#11227)

* secret ok in POST operation

* fix prettier

specification/apimanagement/resource-manager/Microsoft.ApiManagement/preview/2020-06-01-preview/definitions.json

@@ -1171,7 +1171,6 @@
     "AuthorizationServerSecretsContract": {
       "properties": {
         "clientSecret": {
-          "x-ms-secret": true,
           "type": "string",
           "description": "oAuth Authorization Server Secrets."
         },
@@ -1180,7 +1179,6 @@
           "description": "Can be optionally specified when resource owner password grant type is supported by this authorization server. Default resource owner username."
         },
         "resourceOwnerPassword": {
-          "x-ms-secret": true,
           "type": "string",
           "description": "Can be optionally specified when resource owner password grant type is supported by this authorization server. Default resource owner password."
         }