From 930de9aeb7fa25537a7b7ff1106fd95659c4e4b7 Mon Sep 17 00:00:00 2001
From: Eugene <john.pankov@gmail.com>
Date: Sat, 2 May 2020 22:48:30 +0200
Subject: [PATCH] Update src/browser/ScreenDprMonitor.ts

Co-authored-by: Daniel Imms <tyriar@tyriar.com>
---
 src/browser/ScreenDprMonitor.ts | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/src/browser/ScreenDprMonitor.ts b/src/browser/ScreenDprMonitor.ts
index 6bd4857e..27ae231f 100644
--- a/src/browser/ScreenDprMonitor.ts
+++ b/src/browser/ScreenDprMonitor.ts
@@ -49,9 +49,7 @@ export class ScreenDprMonitor extends Disposable {
     }
 
     // Clear listeners for old DPR
-    if (this._resolutionMediaMatchList) {
-      this._resolutionMediaMatchList.removeListener(this._outerListener);
-    }
+    this._resolutionMediaMatchList?.removeListener(this._outerListener);
 
     // Add listeners for new DPR
     this._currentDevicePixelRatio = window.devicePixelRatio;