Playground: Working with Subjects, Remove Variable

Rx.playground/Pages/Filtering_and_Conditional_Operators.xcplaygroundpage/Contents.swift

@@ -179,7 +179,7 @@ example("skip") {
  */
 example("skipWhile") {
     let disposeBag = DisposeBag()
-    
+
     Observable.of(1, 2, 3, 4, 5, 6)
         .skipWhile { $0 < 4 }
         .subscribe(onNext: { print($0) })

Rx.playground/Pages/Working_with_Subjects.xcplaygroundpage/Contents.swift

@@ -89,22 +89,6 @@ example("BehaviorSubject") {
 }
 /*:
  > Notice what's missing in these previous examples? A Completed event. `PublishSubject`, `ReplaySubject`, and `BehaviorSubject` do not automatically emit Completed events when they are about to be disposed of.
- ----
- ## Variable
- Wraps a `BehaviorSubject`, so it will emit the most recent (or initial) value to new subscribers. And `Variable` also maintains current value state. `Variable` will never emit an Error event. However, it will automatically emit a Completed event and terminate on `deinit`.
 */
-example("Variable") {
-    let disposeBag = DisposeBag()
-    let variable = Variable("🔴")
-    
-    variable.asObservable().addObserver("1").disposed(by: disposeBag)
-    variable.value = "🐶"
-    variable.value = "🐱"
-    
-    variable.asObservable().addObserver("2").disposed(by: disposeBag)
-    variable.value = "🅰️"
-    variable.value = "🅱️"
-}
-//:  > Call `asObservable()` on a `Variable` instance in order to access its underlying `BehaviorSubject` sequence. `Variable`s do not implement the `on` operator (or, e.g., `onNext(_:)`), but instead expose a `value` property that can be used to get the current value, and also set a new value. Setting a new value will also add that value onto its underlying `BehaviorSubject` sequence.
 
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