[ReleasePR consumption] [Hub Generated] Review request for Microsoft.Consumption to add version stable/2021-10-01 (#2131)

Create to sync Azure/azure-rest-api-specs#18309
[ReCreate this PR](https://github.com/azure-resource-manager-schemas/compare/main...AzureSDKAutomation:sdkAuto/consumption?expand=1)

Author: msftbot[bot]

schemas/2021-10-01/Microsoft.Consumption.json

@@ -121,17 +121,6 @@
           ],
           "description": "The comparison expression to be used in the budgets."
         },
-        "not": {
-          "oneOf": [
-            {
-              "$ref": "#/definitions/BudgetFilterProperties"
-            },
-            {
-              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
-            }
-          ],
-          "description": "The Dimensions or Tags to filter a budget by."
-        },
         "tags": {
           "oneOf": [
             {