Remove trailing whitespace in dnn

dnn/README.md

dnn/datasets.txt

dnn/download_model.bat

dnn/dump_data.c

dnn/freq.c

dnn/lpcnet.c

dnn/nnet.c

dnn/parse_lpcnet_weights.c

dnn/test_vec.c

dnn/torch/rdovae/export_rdovae_weights.py

dnn/torch/rdovae/fec_encoder.py

dnn/torch/rdovae/import_rdovae_weights.py

dnn/torch/rdovae/packets/fec_packets.c

dnn/torch/rdovae/packets/fec_packets.py

dnn/torch/rdovae/rdovae/dataset.py

dnn/torch/rdovae/rdovae/rdovae.py

dnn/torch/rdovae/train_rdovae.py

dnn/training_tf2/diffembed.py

dnn/training_tf2/dump_lpcnet.py

dnn/training_tf2/dump_plc.py