media: MAINTAINERS: drop unreachable contact for MEDIATEK JPEG DRIVER

After sending a patch to Rick Chang, the mediatek mail server responded:

  ** Message not delivered **

  Your message couldn't be delivered to rick.chang@mediatek.com because
  the remote server is misconfigured. See technical details below for more
  information.

  The response from the remote server was:
  550 Relaying mail to rick.chang@mediatek.com is not allowed

So, drop Rick Chang from the MEDIATEK JPEG DRIVER section.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Reviewed-by: Miles Chen <miles.chen@mediatek.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

MAINTAINERS

@@ -12372,7 +12372,6 @@ F:	drivers/iommu/mtk_iommu*
 F:	include/dt-bindings/memory/mt*-port.h
 
 MEDIATEK JPEG DRIVER
-M:	Rick Chang <rick.chang@mediatek.com>
 M:	Bin Liu <bin.liu@mediatek.com>
 S:	Supported
 F:	Documentation/devicetree/bindings/media/mediatek-jpeg-*.yaml