dt-bindings: google,cros-ec: drop Enric Balletbo i Serra from maintainers

Enric Balletbo i Serra emails bounce:

<[e-mail]>: Recipient address rejected: User unknown in local recipient table

so drop him from the maintainers, similarly to commit 3119c28634dd
("MAINTAINERS: Chrome: Drop Enric Balletbo i Serra").

Signed-off-by: Krzysztof Kozlowski <[e-mail]>
Acked-by: Lee Jones <[e-mail]>
Acked-by: Enric Balletbo i Serra <[e-mail]>
Signed-off-by: Rob Herring <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]

Documentation/devicetree/bindings/extcon/extcon-usbc-cros-ec.yaml

···
 
 maintainers:
   - Benson Leung <[e-mail]>
-  - Enric Balletbo i Serra <[e-mail]>
 
 description: |
   On ChromeOS systems with USB Type C ports, the ChromeOS Embedded Controller is

Documentation/devicetree/bindings/i2c/google,cros-ec-i2c-tunnel.yaml

···
 maintainers:
   - Doug Anderson <[e-mail]>
   - Benson Leung <[e-mail]>
-  - Enric Balletbo i Serra <[e-mail]>
 
 description: |
   On some ChromeOS board designs we've got a connection to the EC

Documentation/devicetree/bindings/iio/proximity/google,cros-ec-mkbp-proximity.yaml

···
 maintainers:
   - Stephen Boyd <[e-mail]>
   - Benson Leung <[e-mail]>
-  - Enric Balletbo i Serra <[e-mail]>
 
 description: |
   Google's ChromeOS EC sometimes has the ability to detect user proximity.

Documentation/devicetree/bindings/input/google,cros-ec-keyb.yaml

···
 maintainers:
   - Simon Glass <[e-mail]>
   - Benson Leung <[e-mail]>
-  - Enric Balletbo i Serra <[e-mail]>
 
 description: |
   Google's ChromeOS EC Keyboard is a simple matrix keyboard

Documentation/devicetree/bindings/mfd/google,cros-ec.yaml

···
 
 maintainers:
   - Benson Leung <[e-mail]>
-  - Enric Balletbo i Serra <[e-mail]>
   - Guenter Roeck <[e-mail]>
 
 description: