electron 3.0.x - --no-untrusted-code-mitigations does not seem to do anything

src/main.js

@@ -175,14 +175,6 @@ function resolveJSFlags(cliArgs, ...jsFlags) {
 		jsFlags.push(`--max_old_space_size=${cliArgs['max-memory']}`);
 	}
 
-	// Since Electron 3 we use a V8 version that comes with untrusted code mitigations
-	// enabled by default (https://v8.dev/docs/untrusted-code-mitigations). This comes
-	// at a performance cost according to the blog. Since we do not execute untrusted
-	// code, we disable these mitigations.
-	// TODO@Ben revisit this for later Electron versions, search for more usages of
-	// --no-untrusted-code-mitigations
-	jsFlags.push('--no-untrusted-code-mitigations');
-
 	return jsFlags.length > 0 ? jsFlags.join(' ') : null;
 }
 

src/vs/base/parts/ipc/node/ipc.cp.ts

@@ -196,11 +196,6 @@ export class Client implements IChannelClient, IDisposable {
 				forkOpts.execArgv = ['--nolazy', '--inspect-brk=' + this.options.debugBrk];
 			}
 
-			if (!Array.isArray(forkOpts.execArgv)) {
-				forkOpts.execArgv = [];
-			}
-			forkOpts.execArgv.push('--no-untrusted-code-mitigations');
-
 			this.child = fork(this.modulePath, args, forkOpts);
 
 			const onMessageEmitter = new Emitter<Buffer>();