ARM: defconfig: drop CONFIG_DRM_RCAR_LVDS

This is now a hidden symbol, so just drop the defconfig line.

Fixes: 42d95d1b ("drm/rcar: stop using 'imply' for dependencies")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

arch/arm/configs/multi_v7_defconfig

@@ -713,7 +713,6 @@ CONFIG_ROCKCHIP_DW_MIPI_DSI=y
 CONFIG_ROCKCHIP_INNO_HDMI=y
 CONFIG_DRM_ATMEL_HLCDC=m
 CONFIG_DRM_RCAR_DU=m
-CONFIG_DRM_RCAR_LVDS=y
 CONFIG_DRM_SUN4I=m
 CONFIG_DRM_MSM=m
 CONFIG_DRM_FSL_DCU=m