Update predefined.md

Author: amontoison

docs/src/predefined.md

@@ -54,7 +54,6 @@ nlp = ADNLPModel!(f, x0, lvar, uvar, c!, lcon, ucon, backend = :enzyme)
 get_adbackend(nlp)
 ```
 
-@@ -0,0 +1,182 @@
 !!! danger
     The interface for Enzyme.jl is still under development.