[change] Remove PropTypes exports and internal use

Removes the following deprecated exports: `ColorPropType`,
`EdgeInsetsPropType`, `PointPropType`, `TextPropTypes`, and `ViewPropTypes`.

Remove all use of `prop-types` in the implementations of components. Flow types
are used instead, so there will no longer be runtime warnings related to props.

NOTE: Removes support for `className` prop.

Fix #1383
Close #1477
Close #1474
Close #1489

packages/babel-plugin-react-native-web/src/moduleMap.js

@@ -10,13 +10,11 @@ module.exports = {
   Button: true,
   CheckBox: true,
   Clipboard: true,
-  ColorPropType: true,
   DeviceEventEmitter: true,
   DeviceInfo: true,
   Dimensions: true,
   DrawerLayoutAndroid: true,
   Easing: true,
-  EdgeInsetsPropType: true,
   FlatList: true,
   I18nManager: true,
   Image: true,
@@ -35,7 +33,6 @@ module.exports = {
   Picker: true,
   PixelRatio: true,
   Platform: true,
-  PointPropType: true,
   ProgressBar: true,
   RefreshControl: true,
   SafeAreaView: true,
@@ -51,7 +48,6 @@ module.exports = {
   TabBarIOS: true,
   Text: true,
   TextInput: true,
-  TextPropTypes: true,
   TimePickerAndroid: true,
   ToastAndroid: true,
   Touchable: true,
@@ -62,7 +58,6 @@ module.exports = {
   UIManager: true,
   Vibration: true,
   View: true,
-  ViewPropTypes: true,
   VirtualizedList: true,
   YellowBox: true,
   createElement: true,