Remove 'cleanUp =' from ueh

[keemor]

'cleanUp =' is an error in ueh

[alDuncanson]

Hey, @keemor thanks for the pull request.

What do you mean it is an error?

[keemor]

Hi @alDuncanson

TypeScript says:

and in docs there is:
https://reactjs.org/docs/hooks-effect.html#example-using-hooks-1

useEffect(() => {
    
  
    return function cleanUp() {
      
    }
  }, []);

but it can also be as (this how my PR changes it):

useEffect(() => {
    
  
    return () => {
      
    }
  }, []);

[alDuncanson]

Ah alright, looks good 👍🏻