Match existing type usage better.

webrtc/modules/audio_coding/codecs/ilbc/frame_classify.c

Index: webrtc/modules/audio_coding/codecs/ilbc/frame_classify.c
diff --git a/webrtc/modules/audio_coding/codecs/ilbc/frame_classify.c b/webrtc/modules/audio_coding/codecs/ilbc/frame_classify.c
index d124b6b7f7499faebb2c7bcf9e0352ffed17c45f..6a68dec16f612f88660c8cc91c77d7ba1599452f 100644
--- a/webrtc/modules/audio_coding/codecs/ilbc/frame_classify.c
+++ b/webrtc/modules/audio_coding/codecs/ilbc/frame_classify.c
@@ -62,7 +62,7 @@ int16_t WebRtcIlbcfix_FrameClassify(
   }
 
   /* Scale to maximum 20 bits in order to allow for the 11 bit window */
-  maxW32 = WebRtcSpl_MaxValueW32(ssqEn, (int16_t)(iLBCenc_inst->nsub-1));
+  maxW32 = WebRtcSpl_MaxValueW32(ssqEn, iLBCenc_inst->nsub - 1);
   scale = WebRtcSpl_GetSizeInBits(maxW32) - 20;
   scale1 = WEBRTC_SPL_MAX(0, scale);
 
@@ -82,7 +82,7 @@ int16_t WebRtcIlbcfix_FrameClassify(
   }
 
   /* Extract the best choise of start state */
-  pos = WebRtcSpl_MaxIndexW32(ssqEn, (int16_t)(iLBCenc_inst->nsub-1)) + 1;
+  pos = WebRtcSpl_MaxIndexW32(ssqEn, iLBCenc_inst->nsub - 1) + 1;
 
   return(pos);
 }