* system.h (CASE_USE_BIT_TESTS): Poison.
	* stmt.c (CASE_USE_BIT_TESTS): Fold away into its only user ...
	(expand_switch_using_bit_tests_p): ...here.
	* doc/tm.texi.in (CASE_USE_BIT_TESTS): Remove documentation.
	* doc/tm.texi (CASE_USE_BIT_TESTS): Regenerate.

From-SVN: r189078