Revert "hrtimer: Add support for CLOCK_MONOTONIC_RAW"

BugLink: http://bugs.launchpad.net/bugs/1549494

This reverts commit 45b5c64b98b3ab90332bf7f256a6a1bae60c1527.
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>

include/linux/hrtimer.h

@@ -153,7 +153,6 @@ enum  hrtimer_base_type {
 	HRTIMER_BASE_REALTIME,
 	HRTIMER_BASE_BOOTTIME,
 	HRTIMER_BASE_TAI,
-	HRTIMER_BASE_MONOTONIC_RAW,
 	HRTIMER_MAX_CLOCK_BASES,
 };
 

kernel/time/hrtimer.c

@@ -90,11 +90,6 @@ DEFINE_PER_CPU(struct hrtimer_cpu_base, hrtimer_bases) =
 			.clockid = CLOCK_TAI,
 			.get_time = &ktime_get_clocktai,
 		},
-		{
-			.index = HRTIMER_BASE_MONOTONIC_RAW,
-			.clockid = CLOCK_MONOTONIC_RAW,
-			.get_time = &ktime_get_raw,
-		},
 	}
 };
 
@@ -104,7 +99,6 @@ static const int hrtimer_clock_to_base_table[MAX_CLOCKS] = {
 
 	[CLOCK_REALTIME]	= HRTIMER_BASE_REALTIME,
 	[CLOCK_MONOTONIC]	= HRTIMER_BASE_MONOTONIC,
-	[CLOCK_MONOTONIC_RAW]	= HRTIMER_BASE_MONOTONIC_RAW,
 	[CLOCK_BOOTTIME]	= HRTIMER_BASE_BOOTTIME,
 	[CLOCK_TAI]		= HRTIMER_BASE_TAI,
 };
@@ -1298,10 +1292,7 @@ static void __hrtimer_run_queues(struct hrtimer_cpu_base *cpu_base, ktime_t now)
 		if (!(active & 0x01))
 			continue;
 
-		if (unlikely(base->index == HRTIMER_BASE_MONOTONIC_RAW))
-			basenow = ktime_get_raw();
-		else
-			basenow = ktime_add(now, base->offset);
+		basenow = ktime_add(now, base->offset);
 
 		while ((node = timerqueue_getnext(&base->active))) {
 			struct hrtimer *timer;