DEVELOPERS: drop Samuel Martin

Samuel Martin has not been around in the Buildroot community for many,
many years. His last posting on the mailing list was on July 2018. So
let's not pretend those packages are actually maintained, and let's
stop spamming Samuel with lots of patches and autobuilder failures.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
(cherry picked from commit d8b83b861c)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

DEVELOPERS

@@ -2764,20 +2764,6 @@ F:	package/procs/
 N:	Sam Lancia <sam@gpsm.co.uk>
 F:	package/lrzip/
 
-N:	Samuel Martin <s.martin49@gmail.com>
-F:	package/armadillo/
-F:	package/cwiid/
-F:	package/flite/
-F:	package/nginx/
-F:	package/opencv3/
-F:	package/openobex/
-F:	package/pkg-cmake.mk
-F:	package/python-numpy/
-F:	package/scrub/
-F:	package/urg/
-F:	package/ussp-push/
-F:	support/misc/toolchainfile.cmake.in
-
 N:	Sam Voss <sam.voss@gmail.com>
 F:	package/ripgrep/