Updated with-xstate (#11658)

* Replaced getInitialProps with SSG

* Removed getStaticProps

* Apply suggestions from code review

Remove count
Co-authored-by: NLuis Alvarez D <luis@zeit.co>

examples/with-xstate/pages/index.js

@@ -4,10 +4,10 @@ import { Counter, Toggle } from '../components'
 import { toggleMachine } from '../machines/toggleMachine'
 import { counterMachine } from '../machines/counterMachine'
 
-const IndexPage = ({ count }) => {
+const IndexPage = () => {
   const [toggleCurrent, toggleSend] = useMachine(toggleMachine)
   const [counterCurrent, counterSend] = useMachine(counterMachine, {
-    context: { count },
+    context: { count: 999 },
   })
 
   return (
@@ -29,8 +29,4 @@ const IndexPage = ({ count }) => {
   )
 }
 
-IndexPage.getInitialProps = async () => {
-  return { count: 999 }
-}
-
 export default IndexPage