staging/lustre: remove Peng Tao from Lustre contact list

I am leaving emc for a new company where I cannot have much
time working on Lustre. So remove myself from the contact
list. I will still be around and continue to contribute as a
hobbyist though.

Cc: Andreas Dilger <andreas.dilger@intel.com>
Cc: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: Peng Tao <bergwolf@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/lustre/TODO

@@ -9,6 +9,5 @@
 * Other minor misc cleanups...
 
 Please send any patches to Greg Kroah-Hartman <greg@kroah.com>, Andreas Dilger
-<andreas.dilger@intel.com>, Oleg Drokin <oleg.drokin@intel.com> and
-Peng Tao <tao.peng@emc.com>. CCing hpdd-discuss <hpdd-discuss@lists.01.org>
-would be great too.
+<andreas.dilger@intel.com>, Oleg Drokin <oleg.drokin@intel.com>. CCing
+hpdd-discuss <hpdd-discuss@lists.01.org> would be great too.