diff --git a/common/cpu_limiter.h b/common/cpu_limiter.h
index c7add89..e6d7331 100644
--- a/common/cpu_limiter.h
+++ b/common/cpu_limiter.h
@@ -30,10 +30,6 @@
   kLow = 2,
 };
 
-// Sets the current process shares to |shares|. Returns true on
-// success, false otherwise.
-bool SetCpuShares(CpuShares shares);
-
 class CPULimiter {
  public:
   CPULimiter() = default;