cleanup some unneeded imports for hijack files

modules/sd_hijack.py

@@ -1,16 +1,10 @@
-import math
-import os
-import sys
-import traceback
 import torch
-import numpy as np
-from torch import einsum
 from torch.nn.functional import silu
 
 import modules.textual_inversion.textual_inversion
-from modules import prompt_parser, devices, sd_hijack_optimizations, shared, sd_hijack_checkpoint
+from modules import devices, sd_hijack_optimizations, shared, sd_hijack_checkpoint
 from modules.hypernetworks import hypernetwork
-from modules.shared import opts, device, cmd_opts
+from modules.shared import cmd_opts
 from modules import sd_hijack_clip, sd_hijack_open_clip, sd_hijack_unet
 
 from modules.sd_hijack_optimizations import invokeAI_mps_available

modules/sd_hijack_optimizations.py

@@ -5,7 +5,6 @@ import importlib
 
 import torch
 from torch import einsum
-import torch.nn.functional as F
 
 from ldm.util import default
 from einops import rearrange
@@ -13,8 +12,6 @@ from einops import rearrange
 from modules import shared
 from modules.hypernetworks import hypernetwork
 
-from ldm.modules.diffusionmodules.util import timestep_embedding
-
 
 if shared.cmd_opts.xformers or shared.cmd_opts.force_enable_xformers:
     try: