Remove dead function

Change-Id: If6f25deface628dbc9bc1964a352ab1b8fed1227

aom_dsp/aom_dsp_common.h

diff --git a/aom_dsp/aom_dsp_common.h b/aom_dsp/aom_dsp_common.h
index 38d62e5..2261e53 100644
--- a/aom_dsp/aom_dsp_common.h
+++ b/aom_dsp/aom_dsp_common.h
@@ -69,10 +69,6 @@
   return value < low ? low : (value > high ? high : value);
 }
 
-static INLINE uint32_t clamp32u(uint32_t value, uint32_t low, uint32_t high) {
-  return value < low ? low : (value > high ? high : value);
-}
-
 static INLINE int64_t clamp64(int64_t value, int64_t low, int64_t high) {
   return value < low ? low : (value > high ? high : value);
 }