- updated to tensorflow 0.13.2
- dropped grpc.tar.gz and grpc-v1.13.0.gz as system grpc is used, this
fixes the broken builds which were introduced with gcc9 (bsc#1152671)
* added grpc-namespace-corrections.patch in order to use system grpc
- dropped re2-2018-10-01.tar.gz as system re2 is used now

- added remove-keras.patch which removes keras sources and uses
distribution keras libaries
* removed keras-applications-1.0.6.tar.gz
* removed keras-preprocessing-1.0.9.tar.gz

- using now system protobuf instead of building it (bsc#1151150)