square brackets not needed

> They are used in case we modify the actual text,
> like pluralizing for example, :t:`[principal trait]s`

Co-authored-by: Lukas Wirth <[email protected]>

Author: tshepang

src/types-and-traits.rst

@@ -2046,7 +2046,7 @@ occur when:
   :t:`type`.
 
 * :dp:`fls_SYnFJBhi0IWj`
-  The source :t:`type` is a :t:`trait object type` and the target :t:`type` is a :t:`trait object type` with the same or no :t:`[principal trait]`, and the target :t:`type` has the same or less non-:t:`principal trait` :t:`[trait bound]s`.
+  The source :t:`type` is a :t:`trait object type` and the target :t:`type` is a :t:`trait object type` with the same or no :t:`principal trait`, and the target :t:`type` has the same or less non-:t:`principal trait` :t:`[trait bound]s`.
 
 :dp:`fls_iiiu2q7pym4p`
 An :t:`unsized coercion` is a :t:`type coercion` that converts a :t:`sized type`