Remove unused WS parameters

Author: davet2001

src/data/preview.ts

@@ -12,15 +12,11 @@ export const subscribePreviewGeneric = (
   hass: HomeAssistant,
   domain: string,
   flow_id: string,
-  flow_type: "config_flow" | "options_flow",
-  user_input: Record<string, any>,
   callback: (preview: GenericPreview) => void
 ): Promise<UnsubscribeFunc> =>
   hass.connection.subscribeMessage(callback, {
     type: `${domain}/start_preview`,
     flow_id,
-    flow_type,
-    user_input,
   });
 
 export const previewModule = (domain: string): string =>

src/dialogs/config-flow/previews/flow-preview-generic.ts

@@ -84,8 +84,6 @@ export class FlowPreviewGeneric extends LitElement {
         this.hass,
         this.domain,
         this.flowId,
-        this.flowType,
-        this.stepData,
         this._setPreview
       );
       fireEvent(this, "set-flow-errors", { errors: {} });