brcm2708: partially revert r46347 to fix sysupgrade

Signed-off-by: John Crispin <[email protected]>

SVN-Revision: 46367

target/linux/brcm2708/image/Makefile

@@ -40,9 +40,6 @@ endef
 define Build/sdcard-img
 	./gen_rpi_sdcard_img.sh $@ [email protected] $(word 2,$^) \
 		$(CONFIG_BRCM2708_SD_BOOT_PARTSIZE) $(CONFIG_TARGET_ROOTFS_PARTSIZE)
-  ifneq ($(CONFIG_TARGET_IMAGES_GZIP),)
-	gzip -k -f9 $(BIN_DIR)/$(IMG_PREFIX)-sdcard-vfat-$(1).img
-  endif
 endef
 
 ### Device macros ###