Delete class SSRCDatabase, and its global ssrc registry.

webrtc/modules/rtp_rtcp/BUILD.gn

 # Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
 #
 # Use of this source code is governed by a BSD-style license
 # that can be found in the LICENSE file in the root of the source
 # tree. An additional intellectual property rights grant can be found
 # in the file PATENTS.  All contributing project authors may
 # be found in the AUTHORS file in the root of the source tree.
 
 import("../../webrtc.gni")
 
@@ skipping 125 matching lines @@
     "source/rtp_rtcp_impl.cc",
     "source/rtp_rtcp_impl.h",
     "source/rtp_sender.cc",
     "source/rtp_sender.h",
     "source/rtp_sender_audio.cc",
     "source/rtp_sender_audio.h",
     "source/rtp_sender_video.cc",
     "source/rtp_sender_video.h",
     "source/rtp_utility.cc",
     "source/rtp_utility.h",
-    "source/ssrc_database.cc",
-    "source/ssrc_database.h",
     "source/time_util.cc",
     "source/time_util.h",
     "source/tmmbr_help.cc",
     "source/tmmbr_help.h",
     "source/ulpfec_generator.cc",
     "source/ulpfec_generator.h",
     "source/ulpfec_header_reader_writer.cc",
     "source/ulpfec_header_reader_writer.h",
     "source/ulpfec_receiver_impl.cc",
     "source/ulpfec_receiver_impl.h",
@@ skipping 151 matching lines @@
     ]
 
     # TODO(jschuh): bugs.webrtc.org/1348: fix this warning.
     configs += [ "//build/config/compiler:no_size_t_to_int_warning" ]
     if (!build_with_chromium && is_clang) {
       # Suppress warnings from the Chromium Clang plugin (bugs.webrtc.org/163).
       suppressed_configs += [ "//build/config/clang:find_bad_constructs" ]
     }
   }
 }