Slight code clarification in RemoveStoppedTransceivers.

There's no change in functionality, which was verified by adding
an 'else' catch-all clause in the loop with an RTC_NOTREACHED()
statement. See patchset #3.

This is mostly a cosmetic change that modifies the loop such that
it's guaranteed that Remove() is always called for transceivers
whose state is "stopped" and there's just one place where Remove()
is called.

Bug: none
Change-Id: Iffe237bb2f08e5e6ef316a6b76c4b183df671f3b
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/215232
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#33765}
diff --git a/pc/sdp_offer_answer.cc b/pc/sdp_offer_answer.cc
index 66a51b7..cd477f1 100644
--- a/pc/sdp_offer_answer.cc
+++ b/pc/sdp_offer_answer.cc
@@ -4275,20 +4275,16 @@
     if ((local_content && local_content->rejected) ||
         (remote_content && remote_content->rejected)) {
       RTC_LOG(LS_INFO) << "Dissociating transceiver"
-                       << " since the media section is being recycled.";
+                          " since the media section is being recycled.";
       transceiver->internal()->set_mid(absl::nullopt);
       transceiver->internal()->set_mline_index(absl::nullopt);
-      transceivers()->Remove(transceiver);
-      continue;
-    }
-    if (!local_content && !remote_content) {
+    } else if (!local_content && !remote_content) {
       // TODO(bugs.webrtc.org/11973): Consider if this should be removed already
       // See https://github.com/w3c/webrtc-pc/issues/2576
       RTC_LOG(LS_INFO)
           << "Dropping stopped transceiver that was never associated";
-      transceivers()->Remove(transceiver);
-      continue;
     }
+    transceivers()->Remove(transceiver);
   }
 }