Remove support for FSDP1 #4387
Description
Now that FSDP2 is stable, we should remove support for FSDP1 to reduce maintenance burden.
FSDP2 could be not compatible with QLoRA, the has to be confirmed before removing.
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Now that FSDP2 is stable, we should remove support for FSDP1 to reduce maintenance burden.
FSDP2 could be not compatible with QLoRA, the has to be confirmed before removing.