rkbin: drop TFA_MAKE_FLAGS

The rkbin package doesn't compile anything, so TFA_MAKE_FLAGS is unused.

Suggested-by: Tianling Shen <[email protected]>
Signed-off-by: Stijn Tintel <[email protected]>

package/boot/rkbin/Makefile

@@ -71,9 +71,6 @@ TFA_TARGETS:= \
 	rk3568-e25 \
 	rk3588
 
-TFA_MAKE_FLAGS+= \
-	$(if $(CONFIG_BINUTILS_VERSION_2_37)$(CONFIG_BINUTILS_VERSION_2_38),,LDFLAGS="-no-warn-rwx-segments")
-
 ifeq ($(BUILD_VARIANT),rk3308-rock-pi-s)
   TPL_FILE:=rk3308_ddr_589MHz_uart0_m0_v2.07.bin
   define Download/rk3308-tpl-rock-pi-s