reachedBottom: remove [base] capture group

Author: freak4pc

Source/RxCocoa/UIScrollView+reachedBottom.swift

@@ -17,10 +17,10 @@ public extension Reactive where Base: UIScrollView {
      - returns: ControlEvent that emits when the bottom of the base UIScrollView is reached.
      */
     func reachedBottom(offset: CGFloat = 0.0) -> ControlEvent<Void> {
-        let source = contentOffset.map { [base] contentOffset in
-            let visibleHeight = base.frame.height - base.contentInset.top - base.contentInset.bottom
-            let y = contentOffset.y + base.contentInset.top
-            let threshold = max(offset, base.contentSize.height - visibleHeight)
+        let source = contentOffset.map { contentOffset in
+            let visibleHeight = self.base.frame.height - self.base.contentInset.top - self.base.contentInset.bottom
+            let y = contentOffset.y + self.base.contentInset.top
+            let threshold = max(offset, self.base.contentSize.height - visibleHeight)
             return y >= threshold
         }
         .distinctUntilChanged()