gcc: remove unused EXTRA_GCC4_CONFIG_OPTIONS

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

toolchain/gcc/gcc-uclibc-4.x.mk

@@ -525,7 +525,6 @@ $(GCC_BUILD_DIR4)/.configured: $(GCC_BUILD_DIR4)/.prepared
 		$(DISABLE_LARGEFILE) \
 		$(EXTRA_GCC_CONFIG_OPTIONS) \
 		$(EXTRA_TARGET_GCC_CONFIG_OPTIONS) \
-		$(EXTRA_GCC4_CONFIG_OPTIONS) \
 	)
 	touch $@