From 72fb914269e341fcd4782384f56532d68f6ffd24 Mon Sep 17 00:00:00 2001
From: Edmond Chui <1967998+EdmondChuiHW@users.noreply.github.com>
Date: Fri, 22 Mar 2024 19:42:15 +0000
Subject: [PATCH] rm interface from RNPerfMetrics (#26)

---
 front_end/core/host/RNPerfMetrics.ts | 14 ++++----------
 1 file changed, 4 insertions(+), 10 deletions(-)

diff --git a/front_end/core/host/RNPerfMetrics.ts b/front_end/core/host/RNPerfMetrics.ts
index 104997934ab..cc78ad02400 100644
--- a/front_end/core/host/RNPerfMetrics.ts
+++ b/front_end/core/host/RNPerfMetrics.ts
@@ -5,26 +5,20 @@
 
 export type RNReliabilityEventListener = (event: ReactNativeChromeDevToolsEvent) => void;
 
-type UnsunscribeFn = () => void;
-export type RNPerfMetrics = {
-  addEventListener: (listener: RNReliabilityEventListener) => UnsunscribeFn,
-  removeAllEventListeners: () => void,
-  sendEvent: (event: ReactNativeChromeDevToolsEvent) => void,
-};
-
 let instance: RNPerfMetrics|null = null;
 
 export function getInstance(): RNPerfMetrics {
   if (instance === null) {
-    instance = new RNPerfMetricsImpl();
+    instance = new RNPerfMetrics();
   }
   return instance;
 }
 
-class RNPerfMetricsImpl implements RNPerfMetrics {
+type UnsubscribeFn = () => void;
+class RNPerfMetrics {
   #listeners: Set<RNReliabilityEventListener> = new Set();
 
-  addEventListener(listener: RNReliabilityEventListener): () => void {
+  addEventListener(listener: RNReliabilityEventListener): UnsubscribeFn {
     this.#listeners.add(listener);
 
     const unsubscribe = (): void => {