* Reduce useless symbols for ELF in an attempt to make smaller

	* Reduce useless symbols for ELF in an attempt to make smaller
	objects and speed up the linker.
	* config/tc-hppa.c (struct call_info): Replace end_symbol field
	with a size field.
	(hppa_elf_mark_end_function): Delete unneeded function.
	(pa_build_unwind_subspace): For the 2nd unwind relocation, use
	the function symbol + function size instead of a special symbol
	for the end of the function.
	(process_exit): Compute the function size here.  Don't call
	hppa_elf_mark_end_of_function anymore.
	(pa_procend): Likewise.
	(hppa_fix_adjustable): Only reject 32bit relocations for SOM.
	(elf_hppa_final_processing): Simplify.