ktime: Kill non-scalar ktime_t implementation for 2038
there is no longer a 32bit version that's unsigned, and we don't have
to jump through ridiculous hoops to make the calculations correct.
I didn't look whether there's more of this pattern in the kernel.
Cc: John Stultz <john.stultz@linaro.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Michel Dänzer <michel.daenzer@amd.com> Cc: Imre Deak <imre.deak@intel.com> Cc: Dave Airlie <airlied@redhat.com> Reviewed-by: Imre Deak <imre.deak@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1459249942-21589-1-git-send-email-daniel.vetter@ffwll.ch