[fix] Prevent props warnings from ScrollView in ListView

[gethinwebster]

As discussed in #260

[necolas]

We do something similar in other components. I think the preferred way to do this is to use restructuring to create an object without the ListView props, and spread that when rendering ScrollView:

const {
  aListViewProp,
  anotherListViewProp,
  ...other
} = this.props

<ScrollView {...other} />

[gethinwebster]

As not all of the ListView props are used within the render method (initialListSize, renderRow etc), this will end up creating quite a few unused variables - what would be your preferred way to deal with those?

[necolas]

https://github.com/necolas/react-native-web/blob/master/src/components/ScrollView/index.js#L104

[necolas]

Thank you. Applied in e06d7a9