Cast: Remove an incorrect assert

I'm seeing asserts coming from PacedSender. The assert is not correct
and should be removed.

NOTRY=true
TBR=miu
BUG=none

Review URL: https://codereview.chromium.org/409943004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@284739 0039d316-1c4b-4281-b951-d872f2087c98

media/cast/net/pacing/paced_sender.cc

@@ -252,8 +252,6 @@ void PacedSender::SendStoredPackets() {
   }
   DCHECK_LE(sent_time_buffer_.size(),
             kMaxBurstSize * kMaxDedupeWindowMs / kPacingIntervalMs);
-  DCHECK_LE(sent_time_.size(),
-            2 * kMaxBurstSize * kMaxDedupeWindowMs / kPacingIntervalMs);
   state_ = State_Unblocked;
 }