Revert of Propagate probing cluster id to SendTimeHistory. (patchset #5 id:80001 of https://codereview.webrtc.org/2005313003/ )

Reason for revert:
Breaks google3 buildbot:  http://webrtc-buildbot-master.mtv.corp.google.com:21000/builders/WebRTC%20google3%20Importer/builds/8640

Original issue's description:
> Propagate probing cluster id to SendTimeHistory, both for packets and padding.
>
> BUG=webrtc:5859
>
> Committed: https://crrev.com/5be28c848b91bc6e4800eac07a3f5ac09a32ad70
> Cr-Commit-Position: refs/heads/master@{#12985}

TBR=danilchap@webrtc.org,stefan@webrtc.org,mflodman@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:5859

Review-Url: https://codereview.webrtc.org/2032463003
Cr-Commit-Position: refs/heads/master@{#12987}

webrtc/modules/rtp_rtcp/source/rtp_rtcp_impl.h

@@ -123,12 +123,11 @@ class ModuleRtpRtcpImpl : public RtpRtcp {
   bool TimeToSendPacket(uint32_t ssrc,
                         uint16_t sequence_number,
                         int64_t capture_time_ms,
-                        bool retransmission,
-                        int probe_cluster_id) override;
+                        bool retransmission) override;
 
   // Returns the number of padding bytes actually sent, which can be more or
   // less than |bytes|.
-  size_t TimeToSendPadding(size_t bytes, int probe_cluster_id) override;
+  size_t TimeToSendPadding(size_t bytes) override;
 
   // RTCP part.