Make it compile

Sources/iOS/TextField.swift

@@ -688,8 +688,8 @@ extension TextField {
         }
         
         updatePlaceholderLabelColor()
-        if self?.isPlaceholderUppercasedWhenEditing ?? false{
-            s.placeholderLabel.text = s.placeholderLabel.text?.capitalized
+        if self.isPlaceholderUppercasedWhenEditing {
+            placeholderLabel.text = placeholderLabel.text?.capitalized
         }
         guard isPlaceholderAnimated else {
             return