Uses scope overload. (#210)

Author: fonkadelic

Sources/ComposableArchitecture/UIKit/IfLetUIKit.swift

@@ -50,8 +50,7 @@ extension Store {
             .skipRepeats { ($0 != nil) == ($1 != nil) }
             .on(value: { if $0 == nil { `else`() } })
             .compactMap { $0 }
-        },
-        action: { $0 }
+        }
       )
       .startWithValues(unwrap)
   }