Update Sources/AssociatedObjectPlugin/AssociatedObjectMacro.swift

Co-authored-by: p-x9 <chi.iosdev@gmail.com>

Author: mlch911

Sources/AssociatedObjectPlugin/AssociatedObjectMacro.swift

@@ -330,24 +330,17 @@ extension AssociatedObjectMacro {
                     "let oldValue = \(identifier)"
                 }
 
+                """
+                setAssociatedObject(
+                    self,
+                    \(associatedKey),
+                    newValue,
+                    \(policy)
+                )
+                """
                 if type.isOptional, hasDefaultValue {
                     """
-                    setAssociatedObject(
-                        self,
-                        \(associatedKey),
-                        newValue,
-                        \(policy)
-                    )
-                        self.__associated_\(identifier.trimmed)IsSet = true
-                    """
-                } else {
-                    """
-                    setAssociatedObject(
-                        self,
-                        \(associatedKey),
-                        newValue,
-                        \(policy)
-                    )
+                    self.__associated_\(identifier.trimmed)IsSet = true
                     """
                 }