revert: revert human input relevant code (#31766)

Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>

web/service/use-workflow.ts

@@ -227,18 +227,3 @@ export const useEditInspectorVar = (flowType: FlowType, flowId: string) => {
     },
   })
 }
-
-export const useTestEmailSender = () => {
-  return useMutation({
-    mutationKey: [NAME_SPACE, 'test email sender'],
-    mutationFn: async (data: { appID: string, nodeID: string, deliveryID: string, inputs: Record<string, any> }) => {
-      const { appID, nodeID, deliveryID, inputs } = data
-      return post<CommonResponse>(`/apps/${appID}/workflows/draft/human-input/nodes/${nodeID}/delivery-test`, {
-        body: {
-          delivery_method_id: deliveryID,
-          inputs,
-        },
-      })
-    },
-  })
-}