DEVELOPERS: remove Maeva Manuel

Maeva told me personally she will no longer contribute to Buildroot
for the time being. This commit removes all the associated DEVELOPERS
entries.

Signed-off-by: Julien Olivain <ju.o@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

DEVELOPERS

@@ -2136,11 +2136,6 @@ N:	Ludwig Kormann <ludwig.kormann@ict42.de>
 F:	board/in-circuit/
 F:	configs/icnova*
 
-N:	Maeva Manuel <maeva.manuel@oss.nxp.com>
-F:	board/freescale/imx8qmmek/
-F:	configs/freescale_imx8qmmek_defconfig
-F:	package/freescale-imx/imx-seco/
-
 N:	Mahyar Koshkouei <mahyar.koshkouei@gmail.com>
 F:	package/ffmpeg/
 F:	package/mpv/