[U-Boot] Unused video drivers

Hi all,

I noticed we have a lot of unused video drivers, specifically:

CONFIG_EXYNOS_PWM_BL CONFIG_L5F31188 CONFIG_SED156X CONFIG_VIDEO_COREBOOT CONFIG_VIDEO_IMX25LCDC CONFIG_VIDEO_SED13806 CONFIG_VIDEO_SMI_LYNXEM CONFIG_AM335X_LCD

Any objections to removing these drivers?