Delete an unneeded include of trace.h

Bug: webrtc:5118
Change-Id: I6b706075428aa4ca22e37ae5be54431f817af3a6
Reviewed-on: https://webrtc-review.googlesource.com/5362
Reviewed-by: Magnus Jedvert <magjed@webrtc.org>
Commit-Queue: Niels Moller <nisse@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#20098}
diff --git a/sdk/android/src/jni/pc/peerconnection_jni.cc b/sdk/android/src/jni/pc/peerconnection_jni.cc
index 7cb693e..8bc8b1f 100644
--- a/sdk/android/src/jni/pc/peerconnection_jni.cc
+++ b/sdk/android/src/jni/pc/peerconnection_jni.cc
@@ -43,7 +43,6 @@
 #include "sdk/android/src/jni/pc/rtcstatscollectorcallbackwrapper.h"
 #include "sdk/android/src/jni/pc/sdpobserver_jni.h"
 #include "sdk/android/src/jni/pc/statsobserver_jni.h"
-#include "system_wrappers/include/trace.h"
 
 namespace webrtc {
 namespace jni {