fbdump: remove --program-prefix

--program-prefix is now set in the auto-target infrastructure.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

package/fbdump/fbdump.mk

@@ -7,7 +7,6 @@ FBDUMP_VERSION:=0.4.2
 FBDUMP_SOURCE:=fbdump-$(FBDUMP_VERSION).tar.gz
 FBDUMP_SITE:=http://www.rcdrummond.net/fbdump
 FBDUMP_AUTORECONF = NO
-FBDUMP_CONF_OPT = --program-prefix=''
 
 $(eval $(call AUTOTARGETS,package,fbdump))