Should I remove android:text used for layout?

Question

android studio

When I make layouts, I insert some fake values ​​​​into android: text in order to see what happens in the "Design" mode. Usually I don't delete them, I just push them. Accordingly, the studio swears that they are not in R.string (I see no reason to transfer them there).
Should they be removed in the release build? Can Google come up with some separate property like android: debug_text for this? Does it affect performance?

Answer 1

Change android:text to tools:text