Remove ChannelInterface and replace it with Channel
diff --git a/tools/doxygen/Doxyfile.c++.internal b/tools/doxygen/Doxyfile.c++.internal
index cd1279e..7137018 100644
--- a/tools/doxygen/Doxyfile.c++.internal
+++ b/tools/doxygen/Doxyfile.c++.internal
@@ -764,8 +764,8 @@
include/grpc++/async_unary_call.h \
include/grpc++/auth_context.h \
include/grpc++/byte_buffer.h \
+include/grpc++/channel.h \
include/grpc++/channel_arguments.h \
-include/grpc++/channel_interface.h \
include/grpc++/client_context.h \
include/grpc++/completion_queue.h \
include/grpc++/config.h \
@@ -804,7 +804,6 @@
src/cpp/client/secure_credentials.h \
src/cpp/common/secure_auth_context.h \
src/cpp/server/secure_server_credentials.h \
-src/cpp/client/channel.h \
src/cpp/common/create_auth_context.h \
src/cpp/client/secure_channel_arguments.cc \
src/cpp/client/secure_credentials.cc \