Maintainers.txt: Update maintainers for NetworkPkg

Cc: Fu Siyuan <siyuan.fu@intel.com>
Cc: Ye Ting <ting.ye@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jiaxin Wu <jiaxin.wu@intel.com>
Reviewed-by: Siyuan Fu <siyuan.fu@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19782 6f19259b-4bc3-4df7-8a09-765794883524

Maintainers.txt

@@ -149,8 +149,6 @@ NetworkPkg
 W: https://github.com/tianocore/tianocore.github.io/wiki/NetworkPkg
 M: Siyuan Fu <siyuan.fu@intel.com>
 M: Jiaxin Wu <jiaxin.wu@intel.com>
-M: Lubo Zhang <lubo.zhang@intel.com>
-M: Fan Wang <fan.wang@intel.com>
 
 Nt32Pkg
 W: https://github.com/tianocore/tianocore.github.io/wiki/Nt32Pkg