Remove long running tag from get operations (#12547)

* removed long running tag from get operations

* removed long running tag from get operation

Author: arpja

specification/recoveryservicesbackup/resource-manager/Microsoft.RecoveryServices/stable/2018-12-20/bms.json

@@ -18,7 +18,7 @@
     "application/json"
   ],
   "paths": {
-    "/subscriptions/{subscriptionId}/providers/Microsoft.RecoveryServices/locations/{azureRegion}/backupAadProperties/default": {
+    "/subscriptions/{subscriptionId}/providers/Microsoft.RecoveryServices/locations/{azureRegion}/backupAadProperties": {
       "get": {
         "tags": [
           "AadProperties"
@@ -275,10 +275,6 @@
             }
           }
         },
-        "x-ms-long-running-operation": true,
-        "x-ms-long-running-operation-options": {
-          "final-state-via": "azure-async-operation"
-        },
         "x-ms-examples": {
           "Get Operation Results for Cross Region Restore": {
             "$ref": "./examples/AzureIaasVm/GetCrrOperationResults_Get.json"

specification/recoveryservicesbackup/resource-manager/Microsoft.RecoveryServices/stable/2020-12-01/bms.json

@@ -584,7 +584,6 @@
             }
           }
         },
-        "x-ms-long-running-operation": true,
         "x-ms-examples": {
           "Prepare Data Move": {
             "$ref": "./examples/BackupDataMove/PrepareDataMove_Post.json"
@@ -639,7 +638,6 @@
             }
           }
         },
-        "x-ms-long-running-operation": true,
         "x-ms-examples": {
           "Get operation result for PrepareDataMove": {
             "$ref": "./examples/BackupDataMove/PrepareDataMoveOperationResult_Get.json"