Revert of Wire up send-side bandwidth estimation. (patchset #8 id:140001 of https://codereview.webrtc.org/1338203003/ )

Reason for revert:
Breaking some Android bots.
https://chromegw.corp.google.com/i/client.webrtc/builders/Android32%20Tests%20%28L%20Nexus5%29

Original issue's description:
> Wire up send-side bandwidth estimation.
>
> BUG=webrtc:4173
>
> Committed: https://crrev.com/ef165eefc79cf28bb67779afe303cc2365885547
> Cr-Commit-Position: refs/heads/master@{#10012}

TBR=stefan@webrtc.org, kjellander@webrtc.org
NOPRESUBMIT=false
NOTREECHECKS=false
NOTRY=false
BUG=webrtc:4173

Review URL: https://codereview.webrtc.org/1362923002 .

Cr-Commit-Position: refs/heads/master@{#10029}

webrtc/modules/rtp_rtcp/source/rtcp_receiver_help.cc

@@ -13,7 +13,6 @@
 #include <assert.h>  // assert
 #include <string.h>  // memset
 
-#include "webrtc/modules/rtp_rtcp/source/rtcp_packet/transport_feedback.h"
 #include "webrtc/modules/rtp_rtcp/source/rtp_utility.h"
 
 namespace webrtc {
@@ -37,7 +36,8 @@ RTCPPacketInformation::RTCPPacketInformation()
       rtp_timestamp(0),
       xr_originator_ssrc(0),
       xr_dlrr_item(false),
-      VoIPMetric(nullptr) {}
+      VoIPMetric(NULL) {
+}
 
 RTCPPacketInformation::~RTCPPacketInformation()
 {