[ReleasePR synapse] Users/v sparatala/merge allx ms mutability (#2599)

Create to sync Azure/azure-rest-api-specs#20749
[ReCreate this PR](https://github.com/azure-resource-manager-schemas/compare/main...azure-sdk:sdkAuto/synapse?expand=1)

Author: msftbot[bot]

schemas/2021-06-01-preview/Microsoft.Synapse.json

@@ -5834,21 +5834,6 @@
           ],
           "description": "Enable or Disable AzureADOnlyAuthentication on All Workspace subresource"
         },
-        "connectivityEndpoints": {
-          "oneOf": [
-            {
-              "type": "object",
-              "additionalProperties": {
-                "type": "string"
-              },
-              "properties": {}
-            },
-            {
-              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
-            }
-          ],
-          "description": "Connectivity endpoints"
-        },
         "cspWorkspaceAdminProperties": {
           "oneOf": [
             {