base: Remove the string logging from CHECK().

net/socket/client_socket_handle.cc

Index: net/socket/client_socket_handle.cc
diff --git a/net/socket/client_socket_handle.cc b/net/socket/client_socket_handle.cc
index be58c7296d62c1b763888f0392edb43174f1a931..10f36fbbcbcb3fdabab7c8cf64d3f7106330e706 100644
--- a/net/socket/client_socket_handle.cc
+++ b/net/socket/client_socket_handle.cc
@@ -165,7 +165,8 @@ void ClientSocketHandle::HandleInitCompletion(int result) {
     return;
   }
   is_initialized_ = true;
-  CHECK_NE(-1, pool_id_) << "Pool should have set |pool_id_| to a valid value.";
+  // Pool should have set |pool_id_| to a valid value.
+  CHECK_NE(-1, pool_id_);
 
   // Broadcast that the socket has been acquired.
   // TODO(eroman): This logging is not complete, in particular set_socket() and