diff --git a/intern/cycles/util/system.cpp b/intern/cycles/util/system.cpp
index 3183ac06f26..c1c496380c5 100644
--- a/intern/cycles/util/system.cpp
+++ b/intern/cycles/util/system.cpp
@@ -204,24 +204,12 @@ bool system_cpu_support_sse2()
   return caps.sse2;
 }
 
-bool system_cpu_support_sse3()
-{
-  CPUCapabilities &caps = system_cpu_capabilities();
-  return caps.sse3;
-}
-
 bool system_cpu_support_sse41()
 {
   CPUCapabilities &caps = system_cpu_capabilities();
   return caps.sse41;
 }
 
-bool system_cpu_support_avx()
-{
-  CPUCapabilities &caps = system_cpu_capabilities();
-  return caps.avx;
-}
-
 bool system_cpu_support_avx2()
 {
   CPUCapabilities &caps = system_cpu_capabilities();
@@ -234,20 +222,11 @@ bool system_cpu_support_sse2()
   return false;
 }
 
-bool system_cpu_support_sse3()
-{
-  return false;
-}
-
 bool system_cpu_support_sse41()
 {
   return false;
 }
 
-bool system_cpu_support_avx()
-{
-  return false;
-}
 bool system_cpu_support_avx2()
 {
   return false;