treewide: remove myself as maintainer

slide-switch is my software, I choose to continue to be sole maintainer.
(This was also the case in #28429.)

Signed-off-by: Jeffery To <jeffery.to@gmail.com>

lang/python/python-setuptools-rust/Makefile

@@ -17,7 +17,7 @@ PKG_HASH:=d94a93f0c97751c17014565f07bdc324bee45d396cd1bba83d8e7af92b945f0c
 
 PKG_LICENSE:=MIT
 PKG_LICENSE_FILES:=LICENSE
-PKG_MAINTAINER:=Jeffery To <jeffery.to@gmail.com>, Alexandru Ardelean <ardeleanalex@gmail.com>
+PKG_MAINTAINER:=Alexandru Ardelean <ardeleanalex@gmail.com>
 
 PKG_HOST_ONLY:=1
 HOST_BUILD_DEPENDS:= \