del some unused things

generate_samples.py

generation/magnify.py

generation/sampling.py

requirements.txt

scripts_old/cuda_2d_text2image.sh

scripts_old/image2text.sh

scripts_old/low_level_super_resolution.sh

scripts_old/post_selection.sh

scripts_old/pretrain_multiple_nodes.sh

scripts_old/pretrain_single_node.sh

scripts_old/super_resolution.sh

scripts_old/testnan.sh

scripts_old/text2image.sh

tokenization/cogview/templates.py

tokenization/cogview/unified_tokenizer.py

tokenization/cogview/vqvae_tokenizer.py

training/deepspeed_training.py

training/model_io.py

training/utils.py