DEVELOPERS: Remove Michael Rommel

Removal requested via email:

could you somehow please remove me as maintainer from this package.
I am since many years not using builtroot anymore and have no longer
systems with which I could do patch requests.
I am going into retirement.

Signed-off-by: James Hilliard <james.hilliard1@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

DEVELOPERS

@@ -2079,11 +2079,6 @@ F:	package/protobuf/
 F:	package/re2/
 F:	package/spdlog/
 
-N:	Michael Rommel <rommel@layer-7.net>
-F:	package/knock/
-F:	package/python-crc16/
-F:	package/python-pyzmq/
-
 N:	Michael Trimarchi <michael@amarulasolutions.com>
 F:	board/bsh/
 F:	configs/imx8mn_bsh_smm_s2_defconfig