chore: remove istanbul ignore

src/utils/validate/system.ts

@@ -1,12 +1,10 @@
 import { inBrowser } from '..';
 
 export function isAndroid(): boolean {
-  /* istanbul ignore next */
   return inBrowser ? /android/.test(navigator.userAgent.toLowerCase()) : false;
 }
 
 export function isIOS(): boolean {
-  /* istanbul ignore next */
   return inBrowser
     ? /ios|iphone|ipad|ipod/.test(navigator.userAgent.toLowerCase())
     : false;