Remove incorrect and not needed validation that onChangeMicrobitName is called for bluetooth flow only here (#569)

Author: microbit-grace

src/connection-stage-actions.ts

@@ -170,9 +170,6 @@ export class ConnectionStageActions {
   };
 
   onChangeMicrobitName = (name: string) => {
-    if (this.stage.connType !== "bluetooth") {
-      throw new Error("Microbit name can only be set for bluetooth flow");
-    }
     this.setStage({
       ...this.stage,
       connType: "bluetooth",