rm unnecessary imports (#473)

* rm unnecessary imports

* doc

README.md

@@ -16,7 +16,7 @@ You might also be interested in another extension I created: [Segment Anything f
 
 ## Update
 - [v2.0.0-a](https://github.com/continue-revolution/sd-webui-animatediff/tree/v2.0.0-a) in `03/02/2023`: The whole extension has been reworked to make it easier to maintain.
-  - Prerequisite: WebUI >= 1.8.0 & ControlNet >=1.1.441
+  - Prerequisite: WebUI >= 1.8.0 & ControlNet >=1.1.441 & PyTorch >= 2.0.0
   - New feature:
       - ControlNet inpaint / IP-Adapter prompt travel / SparseCtrl / ControlNet keyframe, see [ControlNet V2V](docs/features.md#controlnet-v2v)
       - FreeInit, see [FreeInit](docs/features.md#FreeInit)
@@ -47,7 +47,7 @@ I am maintaining a [huggingface repo](https://huggingface.co/conrevo/AnimateDiff
 
 
 ## Tutorial 
-TODO
+There are a lot of wonderful video tutorials on YouTube and bilibili, and you should check those out for now. For the time being, there are a series of updates on the way and I don't want to work on my own before I am satisfied. An official tutorial should come when I am satisfied with the available features.
 
 
 ## Thanks

scripts/animatediff_freeinit.py

@@ -2,21 +2,13 @@ import torch
 import torch.fft as fft
 import math
 
-
-import os
-import re
-import sys
-
 from modules import sd_models, shared, sd_samplers, devices
-from modules.paths import extensions_builtin_dir
 from modules.processing import StableDiffusionProcessing, opt_C, opt_f, StableDiffusionProcessingTxt2Img, StableDiffusionProcessingImg2Img, decode_latent_batch
 from types import MethodType
 
-from scripts.animatediff_logger import logger_animatediff as logger
 from scripts.animatediff_ui import AnimateDiffProcess
 
 
-
 def ddim_add_noise(
         original_samples: torch.FloatTensor,
         noise: torch.FloatTensor,

scripts/animatediff_infv2v.py

@@ -1,4 +1,3 @@
-from calendar import c
 from typing import List
 from types import MethodType
 

scripts/animatediff_xyz.py

@@ -1,4 +1,3 @@
-import sys
 from types import ModuleType
 from typing import Optional