Remove unused image transformations
A lot of transformations/parameters/functions are not used in current DAN code, we should remove them
- SignFlipping
-
preserve_ratiofrom DPIAdjusting - Tightening
apply_transformsline_aug_config
A lot of transformations/parameters/functions are not used in current DAN code, we should remove them
preserve_ratio from DPIAdjustingapply_transformsline_aug_config