Revert PR#863 for now (alternative instruct mode (Vicuna support, etc.))

[prusnak]

Reverting #863 because it seems broken:

• Alternative for instruct mode (Vicuna support, etc.) #863 (comment)
• Using the config alpaca.txt line breaks do not work #969

[ggerganov]

I tried chat.sh and chat-13B.sh - definitely not working.
Let's revert and make sure everything works correctly.

If needed, we should do it in smaller steps

[rabidcopy]

Just referencing this over here as well. #863 (comment)
Seems to be the --rm-trailing-space-workaround or rather the lack of using it being the key problem. Plus two other things that should probably be addressed. Ctrl+D not actually toggling multi-line mode off once it's enabled and code pertaining to injecting the reverse prompt on EOS no longer working.

[aroidzap]

Just referencing this over here as well. #863 (comment) Seems to be the --rm-trailing-space-workaround or rather the lack of using it being the key problem. Plus two other things that should probably be addressed. Ctrl+D not actually togging multi-line mode off once it's enabled and code pertaining to injecting the reverse prompt on EOS no longer working.

Regarding this, I was facing same issue, until I cleared std::cin on Windows. Maybe something like clearerr(stdin); needs to be used otherwise.