base: Remove the string logging from CHECK().

net/quic/test_tools/crypto_test_utils.cc

Index: net/quic/test_tools/crypto_test_utils.cc
diff --git a/net/quic/test_tools/crypto_test_utils.cc b/net/quic/test_tools/crypto_test_utils.cc
index 0f756f0e7dd76ae9c9d403a4baa2e052b2a2db58..a9ff9a779af5b2f0670b4bccd011d97ceee4212e 100644
--- a/net/quic/test_tools/crypto_test_utils.cc
+++ b/net/quic/test_tools/crypto_test_utils.cc
@@ -588,7 +588,8 @@ class MockCommonCertSets : public CommonCertSets {
       : cert_(cert.as_string()), hash_(hash), index_(index) {}
 
   StringPiece GetCommonHashes() const override {
-    CHECK(false) << "not implemented";
+    // not implemented
+    CHECK(false);
     return StringPiece();
   }
 
@@ -851,7 +852,8 @@ CryptoHandshakeMessage CryptoTestUtils::Message(const char* message_tag, ...) {
         const int min_bytes = va_arg(ap, int);
         msg.set_minimum_size(min_bytes);
       } else {
-        CHECK(false) << "Unknown special value: " << special;
+        // Unknown special value.
+        CHECK(false);
       }
 
       continue;