sched/deadline: Remove unnecessary definitions in cpudeadline.h

Actually, cpudl_set() and cpudl_init() can never be used without
CONFIG_SMP.
Signed-off-by: pang.xunlei <pang.xunlei@linaro.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Juri Lelli <juri.lelli@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/1415260327-30465-4-git-send-email-pang.xunlei@linaro.orgSigned-off-by: Ingo Molnar <mingo@kernel.org>

kernel/sched/cpudeadline.h

@@ -25,9 +25,6 @@ int cpudl_find(struct cpudl *cp, struct task_struct *p,
 void cpudl_set(struct cpudl *cp, int cpu, u64 dl, int is_valid);
 int cpudl_init(struct cpudl *cp);
 void cpudl_cleanup(struct cpudl *cp);
-#else
-#define cpudl_set(cp, cpu, dl) do { } while (0)
-#define cpudl_init() do { } while (0)
 #endif /* CONFIG_SMP */
 
 #endif /* _LINUX_CPUDL_H */