MAINTAINERS: remove Mark Lee from MediaTek Ethernet

The mailing lists have seen no email from Mark Lee in the last 4 years.

gitdm missingmaints says:

Subsystem MEDIATEK ETHERNET DRIVER
  Changes 103 / 400 (25%)
  Last activity: 2024-12-19
  Felix Fietkau <nbd@nbd.name>:
    Author 88806efc 2024-10-17 00:00:00 44
    Tags 88806efc 2024-10-17 00:00:00 51
  Sean Wang <sean.wang@mediatek.com>:
    Tags a5d75538 2020-04-07 00:00:00 1
  Mark Lee <Mark-MC.Lee@mediatek.com>:
  Lorenzo Bianconi <lorenzo@kernel.org>:
    Author 0c7469ee 2024-12-19 00:00:00 123
    Tags 0c7469ee 2024-12-19 00:00:00 139
  Top reviewers:
    [32]: horms@kernel.org
    [15]: leonro@nvidia.com
    [9]: andrew@lunn.ch
  INACTIVE MAINTAINER Mark Lee <Mark-MC.Lee@mediatek.com>

Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250108155242.2575530-6-kuba@kernel.org


Signed-off-by: Jakub Kicinski <kuba@kernel.org>