Fix CI

Author: Jules-Bertholet

compiler/rustc_error_codes/src/error_codes/E0719.md

@@ -4,7 +4,7 @@ An associated type value was specified more than once.
 
 Erroneous code example:
 
-```compile_fail,E0719
+```
 trait FooTrait {}
 trait BarTrait {}