maintainers: Remove Hubert Mis from hal_nordic collaborators

Hubert no longer works at Nordic.

Signed-off-by: Carles Cufi <[email protected]>

Author: carlescufi

MAINTAINERS.yml

@@ -5325,7 +5325,6 @@ West:
     - nika-nordic
     - masz-nordic
   collaborators:
-    - hubertmis
     - nordic-krch
     - kl-cruz
     - magp-nordic