target-supports.exp (check_effective_target_bswap16): Remove

target-supports.exp (check_effective_target_bswap16): Remove

	* lib/target-supports.exp (check_effective_target_bswap16): Remove
	(check_effective_target_bswap32): Ditto.
	(check_effective_target_bswap64): Ditto.
	* gcc.dg/optimize-bswaphi-1.c: Use bswap effective
	target instead of bswap16.
	* gcc.dg/optimize-bswapsi-1.c: Use bswap effective
	target instead of bswap32.
	* gcc.dg/optimize-bswapsi-2.c: Ditto.
	* gcc.dg/optimize-bswapsi-3.c: Ditto.
	* gcc.dg/optimize-bswapsi-4.c: Ditto.
	* gcc.dg/optimize-bswapsi-5.c: Ditto.
	* gcc.dg/pr77673.c: Ditto.
	* gcc.dg/optimize-bswapdi-1.c: Use bswap effective
	target instead of bswap64.
	* gcc.dg/optimize-bswapdi-2.c: Ditto.
	* gcc.dg/optimize-bswapdi-3.c: Ditto.

From-SVN: r255075