Remove h8300 special case

Makefile

@@ -82,8 +82,6 @@ headers: dummy
 	    ln -fs mips mipsel; \
 	    cd $(shell pwd)/libpthread/linuxthreads/sysdeps; \
 	    ln -fs mips mipsel; \
-	elif [ $(TARGET_ARCH) = "h8300" ];then \
-	    ln -fs $(KERNEL_SOURCE)/include/asm-h8300 include/asm; \
 	else \
 	    if [ $(HAS_MMU) != "true" ]; then \
 	    	if [ -d $(KERNEL_SOURCE)/include/asm-$(TARGET_ARCH)nommu ] ; then \