test the line

quic/core/crypto/quic_random.cc

diff --git a/quic/core/crypto/quic_random.cc b/quic/core/crypto/quic_random.cc
index 18117b0..a690ed8 100644
--- a/quic/core/crypto/quic_random.cc
+++ b/quic/core/crypto/quic_random.cc
@@ -36,7 +36,6 @@
   rng_state[2] ^= rng_state[0];
   rng_state[3] ^= rng_state[1];
   rng_state[1] ^= rng_state[2];
-  rng_state[0] ^= rng_state[3];
   rng_state[2] ^= t;
   rng_state[3] = Xoshiro256PlusPlusRotLeft(rng_state[3], 45);
   return result;