Fix issues identified by Cross.

The Cross validation tool flagged these two particular lines.

PiperOrigin-RevId: 384766105

http2/http2_structures_test.cc

diff --git a/http2/http2_structures_test.cc b/http2/http2_structures_test.cc
index 44712bc..d74b74c 100644
--- a/http2/http2_structures_test.cc
+++ b/http2/http2_structures_test.cc
@@ -9,7 +9,7 @@
 // Note that EXPECT.*DEATH tests are slow (a fork is probably involved).
 
 // And in case you're wondering, yes, these are ridiculously thorough tests,
-// but believe it or not, I've found stupid bugs this way.
+// but believe it or not, I've found silly bugs this way.
 
 #include <memory>
 #include <ostream>

quic/core/congestion_control/bbr2_simulator_test.cc

diff --git a/quic/core/congestion_control/bbr2_simulator_test.cc b/quic/core/congestion_control/bbr2_simulator_test.cc
index 7216eea..ae0c884 100644
--- a/quic/core/congestion_control/bbr2_simulator_test.cc
+++ b/quic/core/congestion_control/bbr2_simulator_test.cc
@@ -1082,7 +1082,6 @@
             min_rtt_timestamp_after_idle);
 }
 
-// Regression test for http://go/switchtobbr2midconnection.
 TEST_F(Bbr2DefaultTopologyTest, SwitchToBbr2MidConnection) {
   QuicTime now = QuicTime::Zero();
   BbrSender old_sender(sender_connection()->clock()->Now(),