MAINTAINERS: remove jc849

jc849 has never made any form of contributions to the Zephyr project so
drop from MAINTAINERS.yml file.

Signed-off-by: Benjamin Cabé <[email protected]>

Author: kartben

MAINTAINERS.yml

@@ -3864,7 +3864,6 @@ Nuvoton NPCM Platforms:
   maintainers:
     - maxdog988
     - warp5tw
-    - jc849
   files:
     - soc/nuvoton/npcm/
     - boards/nuvoton/npcm*/