Remove duplicated param valud in modref tree

Remove duplicated param valud in modref tree

Modref tree template stores its own copy of param_moderf_max_bases, *_max_refs
and *_max_accesses values.  This was done before we had per-function limits and
even back then it was bit dubious, so this patch removes it.

gcc/ChangeLog:

	* ipa-modref-tree.h (struct modref_tree): Remove max_bases, max_refs
	and max_accesses.
	(modref_tree::modref_tree): Remove parametr.
	(modref_tree::insert_base): Add max_bases parameter.
	(modref_tree::insert): Add max_bases, max_refs, max_accesses
	parameters.
	(modref_tree::insert): New member function.
	(modref_tree::merge): Add max_bases, max_refs, max_accesses
	parameters.
	(modref_tree::insert): New member function.
	* ipa-modref-tree.c (test_insert_search_collapse): Update.
	(test_merge): Update.
	* ipa-modref.c (dump_records): Don't dump max_refs and max_bases.
	(dump_lto_records): Likewise.
	(modref_summary::finalize): Fix whitespace.
	(get_modref_function_summary): Likewise.
	(modref_access_analysis::record_access): Update.
	(modref_access_analysis::record_access_lto): Update.
	(modref_access_analysis::process_fnspec): Update.
	(analyze_function): Update.
	(modref_summaries::duplicate): Update.
	(modref_summaries_lto::duplicate): Update.
	(write_modref_records): Update.
	(read_modref_records): Update.
	(read_section): Update.
	(propagate_unknown_call): Update.
	(modref_propagate_in_scc): Update.
	(ipa_merge_modref_summary_after_inlining): Update.