Remove 'process' usage

Summary: Removed process, adbkit and electron usages that were still remaining. Verified changes by disabling the built-in module stubbing (will be cleaned up further later in this stack).

Reviewed By: aigoncharov

Differential Revision: D33019083

fbshipit-source-id: 8bfce31f4b5ed349cb4fd86d34c9b41b9b8b8360

desktop/app/src/electron/initializeElectron.tsx

@@ -27,6 +27,7 @@ import {setupMenuBar} from './setupMenuBar';
 import {FlipperServer, FlipperServerConfig} from 'flipper-common';
 import type {Icon, RenderHost} from 'flipper-ui-core';
 import {getLocalIconUrl} from '../utils/icons';
+import {getCPUUsage} from 'process';
 
 export function initializeElectron(
   flipperServer: FlipperServer,
@@ -202,6 +203,9 @@ export function initializeElectron(
       }
       delete global.electronRequire.cache[resolvedPath];
     },
+    getPercentCPUUsage() {
+      return getCPUUsage().percentCPUUsage;
+    },
   } as RenderHost;
 
   setupMenuBar();