Reposition files to optionalize client_config system
diff --git a/test/core/end2end/fixtures/h2_proxy.c b/test/core/end2end/fixtures/h2_proxy.c
index 4650da9..699d4bc 100644
--- a/test/core/end2end/fixtures/h2_proxy.c
+++ b/test/core/end2end/fixtures/h2_proxy.c
@@ -42,7 +42,7 @@
 #include <grpc/support/thd.h>
 #include <grpc/support/useful.h>
 #include "src/core/ext/transport/chttp2/transport/chttp2_transport.h"
-#include "src/core/lib/channel/client_channel.h"
+#include "src/core/ext/client_config/client_channel.h"
 #include "src/core/lib/channel/connected_channel.h"
 #include "src/core/lib/channel/http_server_filter.h"
 #include "src/core/lib/surface/channel.h"