Revert "workaround no longer required"

This reverts commit 6e8780e7a11362cc44a07188eb76c9035773beb5.

toolchain/gcc/Makefile

@@ -179,6 +179,9 @@ endif
 	rm -rf ${TOOLCHAIN_DIR}/usr/$(GNU_TARGET_NAME)/lib
 	(cd $(TOOLCHAIN_DIR)/usr/$(GNU_TARGET_NAME); \
 		ln -s ../$(STAGING_HOST2TARGET)/lib lib)
+ifeq ($(ADK_TARGET_ARCH_SH),y)
+	(cd ${STAGING_TARGET_DIR}/ && ln -sf . m4 && ln -sf . m4-nofpu)
+endif
 	$(SED) '/k prot/agcc_cv_libc_provides_ssp=yes' $(WRKBUILD)/gcc/configure
 	cd $(GCC_BUILD_DIR_MINIMAL); \
 		PATH='$(TARGET_PATH)' \