Drop the rtp_rtcp module's dependency on call.

Also deletes a couple of includes of call.h, which seem
unnecessary.

BUG=None

Review-Url: https://codereview.webrtc.org/2907403003
Cr-Commit-Position: refs/heads/master@{#18340}

webrtc/modules/rtp_rtcp/BUILD.gn

@@ -173,7 +173,6 @@ rtc_static_library("rtp_rtcp") {
     "../../base:gtest_prod",
     "../../base:rtc_base_approved",
     "../../base:rtc_task_queue",
-    "../../call:call_interfaces",
     "../../common_video",
     "../../logging:rtc_event_log_api",
     "../../system_wrappers",

webrtc/modules/rtp_rtcp/include/flexfec_receiver.h

@@ -15,7 +15,6 @@
 
 #include "webrtc/base/basictypes.h"
 #include "webrtc/base/sequenced_task_checker.h"
-#include "webrtc/call/call.h"
 #include "webrtc/modules/rtp_rtcp/include/ulpfec_receiver.h"
 #include "webrtc/modules/rtp_rtcp/source/forward_error_correction.h"
 #include "webrtc/modules/rtp_rtcp/source/rtp_packet_received.h"

webrtc/modules/rtp_rtcp/source/rtcp_sender.cc

@@ -18,7 +18,6 @@
 #include "webrtc/base/constructormagic.h"
 #include "webrtc/base/logging.h"
 #include "webrtc/base/trace_event.h"
-#include "webrtc/call/call.h"
 #include "webrtc/common_types.h"
 #include "webrtc/logging/rtc_event_log/rtc_event_log.h"
 #include "webrtc/modules/rtp_rtcp/source/rtcp_packet/app.h"

webrtc/modules/rtp_rtcp/source/rtp_sender.cc

@@ -19,7 +19,6 @@
 #include "webrtc/base/rate_limiter.h"
 #include "webrtc/base/trace_event.h"
 #include "webrtc/base/timeutils.h"
-#include "webrtc/call/call.h"
 #include "webrtc/logging/rtc_event_log/rtc_event_log.h"
 #include "webrtc/modules/remote_bitrate_estimator/test/bwe_test_logging.h"
 #include "webrtc/modules/rtp_rtcp/include/rtp_cvo.h"