package/Makefile.in: remove BR2_TARGET_OPTIMIZATION from TARGET_CFLAGS

Since the toolchain is always wrapped and the wrapper already passes
BR2_TARGET_OPTIMIZATION (through BR_ADDITIONAL_CFLAGS), there is no longer
any need to pass it in TARGET_CFLAGS as well.

Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/Makefile.in

@@ -110,22 +110,20 @@ endif
 STAGING_SUBDIR = usr/$(GNU_TARGET_NAME)/sysroot
 STAGING_DIR    = $(HOST_DIR)/$(STAGING_SUBDIR)
 
-TARGET_OPTIMIZATION := $(call qstrip,$(BR2_TARGET_OPTIMIZATION))
-
 ifeq ($(BR2_OPTIMIZE_0),y)
-TARGET_OPTIMIZATION += -O0
+TARGET_OPTIMIZATION = -O0
 endif
 ifeq ($(BR2_OPTIMIZE_1),y)
-TARGET_OPTIMIZATION += -O1
+TARGET_OPTIMIZATION = -O1
 endif
 ifeq ($(BR2_OPTIMIZE_2),y)
-TARGET_OPTIMIZATION += -O2
+TARGET_OPTIMIZATION = -O2
 endif
 ifeq ($(BR2_OPTIMIZE_3),y)
-TARGET_OPTIMIZATION += -O3
+TARGET_OPTIMIZATION = -O3
 endif
 ifeq ($(BR2_OPTIMIZE_S),y)
-TARGET_OPTIMIZATION += -Os
+TARGET_OPTIMIZATION = -Os
 endif
 ifeq ($(BR2_DEBUG_1),y)
 TARGET_DEBUGGING = -g1