Time interpolators were removed in git 
1f564ad6d41828 ("[IA64] remove
time interpolator"), and Voyager support went away in git 
b6b6e2b112caf
("Documentation: remove obsolete voyager.txt file")
Signed-off-by: Rob Landley <rlandley@parallels.com>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
        - info on the magic SysRq key.
 telephony/
        - directory with info on telephony (e.g. voice over IP) support.
-time_interpolators.txt
-       - info on time interpolators.
 uml/
        - directory with information about User Mode Linux.
 unicode.txt
        - directory with info on the Linux vm code.
 volatile-considered-harmful.txt
        - Why the "volatile" type class should not be used
-voyager.txt
-       - guide to running Linux on the Voyager architecture.
 w1/
        - directory with documents regarding the 1-wire (w1) subsystem.
 watchdog/