Fix broken Lora/Networks: use old method option

[catboxanon]

Description

Closes #12104

Fixes a regression introduced by b75b004 as part of the extra networks rework (#11821). As far as I can tell this was just an oversight during refactoring. This fixes the RuntimeError and produces an image identical to one before this regression.

Note that this function is only ever used when the option is enabled, so it doesn't affect the "new normal" for LoRA operation.

stable-diffusion-webui/extensions-builtin/Lora/networks.py

Lines 323 to 327 in 68f336b

	def network_forward(module, input, original_forward):
	"""
	Old way of applying Lora by executing operations during layer's forward.
	Stacking many loras this way results in big performance degradation.
	"""

Checklist:

• I have read contributing wiki page
• I have performed a self-review of my own code
• My code follows the style guidelines
• My code passes tests