* testsuite/20_util/shared_ptr/assign/auto_ptr_rvalue.cc: Remove
	unused header and variable from compile-only test.
	* testsuite/20_util/shared_ptr/assign/unique_ptr_rvalue.cc: Likewise.
	* testsuite/28_regex/basic_regex/assign/char/cstring.cc: Likewise.
	* testsuite/28_regex/basic_regex/ctors/string_wchar_t.cc: Likewise.
	* testsuite/experimental/memory/shared_ptr/cons/copy_ctor_neg.cc:
	Likewise.

From-SVN: r238943