2010-03-08  Paolo Carlini  <paolo.carlini@oracle.com>

	Revert:
	2010-02-11  Paolo Carlini  <paolo.carlini@oracle.com>

	PR libstdc++/41975, DR 579
	* include/bits/hashtable.h (_Hashtable<>::_M_erase_node): Remove.
	(erase(const_iterator), erase(const_iterator, const_iterator)):
	Change return type to void.
	* include/debug/unordered_map: Adjust.
	* include/debug/unordered_set: Likewise.
	* testsuite/util/exception/safety.h: Likewise.
	* testsuite/23_containers/unordered_map/erase/1.cc: Likewise.
	* testsuite/23_containers/unordered_map/erase/24061-map.cc: Likewise.
	* testsuite/23_containers/unordered_set/erase/1.cc:  Likewise.
	* testsuite/23_containers/unordered_set/erase/24061-map.cc: Likewise.
	* testsuite/23_containers/unordered_multimap/erase/1.cc:  Likewise.
	* testsuite/23_containers/unordered_multimap/erase/24061-map.cc:
	Likewise.
	* testsuite/23_containers/unordered_multiset/erase/1.cc:  Likewise.
	* testsuite/23_containers/unordered_multiset/erase/24061-map.cc:
	Likewise.

From-SVN: r157300