* testsuite/30_threads/shared_lock/modifiers/1.cc: Remove name of
	unused exception variable.
	* testsuite/30_threads/unique_lock/modifiers/1.cc: Likewise.
	* testsuite/30_threads/shared_lock/modifiers/2.cc: Remove duplicate
	test.
	* testsuite/30_threads/unique_lock/modifiers/2.cc: Likewise.

From-SVN: r221477