base: Remove the string logging from CHECK().

net/test/embedded_test_server/http_request.cc

Index: net/test/embedded_test_server/http_request.cc
diff --git a/net/test/embedded_test_server/http_request.cc b/net/test/embedded_test_server/http_request.cc
index ef624dcc8b052f94cabbb509642c64cf638e57ae..6e48f053307ad3dff1ad84d8de7c0e35bc266394 100644
--- a/net/test/embedded_test_server/http_request.cc
+++ b/net/test/embedded_test_server/http_request.cc
@@ -119,8 +119,8 @@ HttpRequestParser::ParseResult HttpRequestParser::ParseHeaders() {
 
     // Protocol.
     const std::string protocol = base::ToLowerASCII(header_line_tokens[2]);
-    CHECK(protocol == "http/1.0" || protocol == "http/1.1") <<
-        "Protocol not supported: " << protocol;
+    // Protocol not supported.
+    CHECK(protocol == "http/1.0" || protocol == "http/1.1");
   }
 
   // Parse further headers.