Clean up globals

Summary: This diff is some boyscouting on cleaning up our globals, and stop using them inconsistently icmw global or window

Reviewed By: aigoncharov

Differential Revision: D33171108

fbshipit-source-id: 400893e5f31523631a7ab6fda428524c751901f1

desktop/types/flipperGlobals.d.ts

@@ -15,15 +15,4 @@ declare const electronRequire: {
   cache: {[module: string]: any};
 };
 
-// For Electron
-declare module NodeJS {
-  interface Global {
-    __REVISION__: string | undefined;
-    __VERSION__: string;
-    electronRequire: {
-      (name: string): any;
-      resolve: (module: string) => string;
-      cache: {[module: string]: any};
-    };
-  }
-}
+declare let FlipperRenderHostInstance: any /* RenderHost */;