remove axis property wrapper

MVMCoreUI/Utility/NSLayoutConstraintAxis+Extension.swift

@@ -60,28 +60,18 @@ extension NSLayoutConstraint.Axis: RawRepresentable {
     }
 }
 
-@propertyWrapper
-public struct Axis {
-    public var wrappedValue: NSLayoutConstraint.Axis
-
-    public init(wrappedValue value: NSLayoutConstraint.Axis) {
-        self.wrappedValue = value
-    }
-}
-
-extension Axis: Codable {
+extension NSLayoutConstraint.Axis: Codable {
     public init(from decoder: Decoder) throws {
         let typeContainer = try decoder.singleValueContainer()
         let string = try typeContainer.decode(String.self)
         guard let axis = NSLayoutConstraint.Axis(rawValue: string) else {
             throw AxisError.notAnAxis
         }
-        wrappedValue = axis
+        self = axis
     }
     
     public func encode(to encoder: Encoder) throws {
-        let string = wrappedValue.rawValueString
         var container = encoder.singleValueContainer()
-        try container.encode(string)
+        try container.encode(rawValueString)
     }
 }