musl: remove sh3 workaround

The GCC bug 67260 is fixed upstream now, remove this workaround.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

toolchain/musl/common.mk

@@ -23,12 +23,6 @@ HOST_BUILD_DIR:=$(BUILD_DIR_TOOLCHAIN)/$(PKG_NAME)-$(PKG_VERSION)
 include $(INCLUDE_DIR)/toolchain-build.mk
 include $(INCLUDE_DIR)/hardening.mk
 
-# Please see https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67260
-ifeq ($(CONFIG_sh3),y)
-TARGET_CFLAGS+= \
-	-fno-optimize-sibling-calls
-endif
-
 MUSL_CONFIGURE:= \
 	$(TARGET_CONFIGURE_OPTS) \
 	CFLAGS="$(TARGET_CFLAGS)" \