tests: Adjust to recent SET_BINARY change * tests/test-binary-io.c (main): * tests/test-binary-io.sh: Remove test for SET_BINARY. * tests/test-closein.c, tests/test-fflush2.c, tests/test-ftell.c: * tests/test-ftello.c, tests/test-nonblocking-pipe-child.c: * tests/test-yesno.c: Use set_binary_mode, not SET_BINARY.