Add missing `Keyboard.removeListener` · rescript-react-native/rescript-react-native@05a5656

Original file line number	Diff line number	Diff line change
`@@ -27,5 +27,8 @@ type listener = keyboardEvent => unit`
`27`	`27`	`@module("react-native") @scope("Keyboard")`
`28`	`28`	`external addListener: (eventType, listener) => EventSubscription.t = "addListener"`
`29`	`29`
	`30`	`+@module("react-native") @scope("Keyboard")`
	`31`	`+external removeListener: (eventType, listener) => EventSubscription.t = "removeListener"`
	`32`	`+`
`30`	`33`	`@module("react-native") @scope("Keyboard")`
`31`	`34`	`external dismiss: unit => unit = "dismiss"`