DEVELOPERS: remove package/python-pysnmp-apps

Package was removed with commit
https://git.buildroot.net/buildroot/commit/?id=ae2781d7d74af7b7b94a30d7a26826de8e1b304f

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

DEVELOPERS

@@ -2059,7 +2059,6 @@ F:	package/miraclecast/
 F:	package/python-pyasn/
 F:	package/python-pycrypto/
 F:	package/python-pysnmp/
-F:	package/python-pysnmp-apps/
 F:	package/python-pysnmp-mibs/
 F:	package/python-tornado/
 F:	package/websocketpp/