Remove unnecessary breaks from SerializeCapsuleWithStatus()

The "break"s in the case statements in SerializeCapsuleWithStatus() will never be reached as there are return statements right above them. This caused [-Werror,-Wunreachable-code-break] when rolling quiche to Chromium, so this change removes the unnecessary code breaks.

PiperOrigin-RevId: 504991431

quiche/common/capsule.cc

diff --git a/quiche/common/capsule.cc b/quiche/common/capsule.cc
index fde1cda..bb1ab7e 100644
--- a/quiche/common/capsule.cc
+++ b/quiche/common/capsule.cc
@@ -416,14 +416,12 @@
           capsule.capsule_type(), allocator,
           WireBytes(capsule.legacy_datagram_without_context_capsule()
                         .http_datagram_payload));
-      break;
     case CapsuleType::CLOSE_WEBTRANSPORT_SESSION:
       return SerializeCapsuleFields(
           capsule.capsule_type(), allocator,
           WireUint32(capsule.close_web_transport_session_capsule().error_code),
           WireBytes(
               capsule.close_web_transport_session_capsule().error_message));
-      break;
     case CapsuleType::ADDRESS_REQUEST:
       return SerializeCapsuleFields(
           capsule.capsule_type(), allocator,