transformers

2acd4869 - Bump min peft 0.19.1 remove weight conversion duplicate code (#46442)

Bump min peft 0.19.1 remove weight conversion duplicate code (#46442) * [PEFT] Use PEFT weight conversion code, bump min version to 0.19.1 As discussed internally. Context When Transformers v5 was released with the new weight conversion feature, it required extra logic to deal with loading PEFT adapters. We agreed to move that logic to PEFT, but at the time there was no PEFT release containing the code, so the logic lived in Transformers. The code has later been duplicated in PEFT and is contained in the 0.19 release (with a bugfix in 0.19.1). Description Now that PEFT v0.19.1 has been out for a long time, we can safely remove the duplicated code in Transformers and bump the min required PEFT version to v0.19.1 (of course, PEFT still is an optional dependency). All duplicated code has been removed and docs have been updated where needed. I have confirmed on my machine that the Transformers PEFT tests still pass with this change. (There are failing tests relating to hotswapping, but those are being worked on elsewhere.) On the other side, PEFT tests for weight conversion also still pass. Open Some PEFT tests use patch_moe_parameter_targeting, but they are correctly guarded against removal of that function. After the next Transformers release, these tests can be removed in PEFT. * Fix more instances referring to older PEFT versions