* pthread_getattr_np.c: No need to install a cancellation handler,

* pthread_getattr_np.c: No need to install a cancellation handler,

	this is no cancellation point.
	* pthread_getschedparam.c: Likewise.
	* pthread_setschedparam.c: Likewise.
	* pthread_setschedprio.c: Likewise.
	* sysdeps/unix/sysv/linux/lowlevellock.c: Remove all traces of
	lll_unlock_wake_cb.
	* sysdeps/unix/sysv/linux/alpha/lowlevellock.h: Likewise.
	* sysdeps/unix/sysv/linux/i386/lowlevellock.h: Likewise.
	* sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S: Likewise.
	* sysdeps/unix/sysv/linux/ia64/lowlevellock.h: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/lowlevellock.h: Likewise.
	* sysdeps/unix/sysv/linux/s390/lowlevellock.h: Likewise.
	* sysdeps/unix/sysv/linux/sh/lowlevellock.S: Likewise.
	* sysdeps/unix/sysv/linux/sh/lowlevellock.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/lowlevellock.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/lowlevellock.c: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/lowlevellock.S: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/lowlevellock.h: Likewise.