Remove obsolete soundclip.cc/.h files.

BUG=

Review URL: https://codereview.webrtc.org/1305033003

Cr-Commit-Position: refs/heads/master@{#9879}
diff --git a/talk/session/media/soundclip.cc b/talk/session/media/soundclip.cc
deleted file mode 100644
index be8d0f9..0000000
--- a/talk/session/media/soundclip.cc
+++ /dev/null
@@ -1 +0,0 @@
-// TODO(solenberg): Remove this file when it's no longer built in Chromium.
diff --git a/talk/session/media/soundclip.h b/talk/session/media/soundclip.h
deleted file mode 100644
index 818ea9d..0000000
--- a/talk/session/media/soundclip.h
+++ /dev/null
@@ -1,2 +0,0 @@
-// TODO(solenberg): Remove this file when it's no longer built in Chromium.
-