* elf-bfd.h (_bfd_elf_link_renumber_dynsyms): Delete.

	* elf-bfd.h (_bfd_elf_link_renumber_dynsyms): Delete.
	* elflink.c (_bfd_elf_link_renumber_dynsyms): Make static, add
	section_sym_count param, and return number of section symbols.
	(bfd_elf_size_dynamic_sections): Clear section symbol area of
	.dynsym contents.  Don't bother calling swap_symbol_out on the
	first all-zero dynsym.
	(elf_mark_used_section): Formatting.  Avoid twiddling flags in
	special sections like bfd_abs_section.
	(bfd_elf_gc_sections): Spelling fix.