powerpc/configs/mpc5200: Drop no longer needed CONFIG_FB

Since commit a03fdcb1 ("drm: Add top level Kconfig option for DRM
fbdev emulation") we no longer need to set CONFIG_FB in our
defconfigs.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

arch/powerpc/configs/mpc5200_defconfig

@@ -70,12 +70,10 @@ CONFIG_SENSORS_LM87=m
 CONFIG_WATCHDOG=y
 CONFIG_MFD_SM501=m
 CONFIG_DRM=y
-CONFIG_FB=y
 CONFIG_FB_FOREIGN_ENDIAN=y
 CONFIG_FB_RADEON=y
 CONFIG_FB_SM501=m
 # CONFIG_VGA_CONSOLE is not set
-CONFIG_FRAMEBUFFER_CONSOLE=y
 CONFIG_LOGO=y
 CONFIG_SOUND=y
 CONFIG_SND=y