directfb: remove unnecessary dependency on libungif

The GIF image provider in DirectFB is self-contained and doesn't
need libungif.

Signed-off-by: Sven Neumann <s.neumann@raumfeld.com>

package/directfb/Config.in

@@ -87,7 +87,6 @@ config BR2_PACKAGE_DIRECTFB_GIF
 	bool "enable GIF support"
 	default y
 	depends on BR2_PACKAGE_DIRECTFB
-	select BR2_PACKAGE_LIBUNGIF
 
 config BR2_PACKAGE_DIRECTFB_JPEG
 	bool "enable JPEG support"

package/directfb/directfb.mk

@@ -91,7 +91,6 @@ endif
 
 ifeq ($(BR2_PACKAGE_DIRECTFB_GIF),y)
 DIRECTFB_GIF:=--enable-gif
-DIRECTFB_DEP+= libungif
 else
 DIRECTFB_GIF:=--disable-gif
 endif