Revert #1963 (#2056)

* Revert "fix(fncall): fix regression introduced in #1963 (#2048)"

This reverts commit 6b06d4e0af4db7a8aa8e131ec2b3af171934862e.

* Revert "fix: action-tmate back to upstream, dead code removal (#2038)"

This reverts commit fdec8a9d00a034ccd8e075008edd165147edf328.

* Revert "feat(grpc): return consumed token count and update response accordingly (#2035)"

This reverts commit e843d7df0e8b177ab122a9f7bfa7196274ccd204.

* Revert "refactor: backend/service split, channel-based llm flow (#1963)"

This reverts commit eed5706994a3e770a0194cad9d1cfd724ba1b10a.

* feat(grpc): return consumed token count and update response accordingly

Fixes: #1920

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

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Signed-off-by: Ettore Di Giacinto <mudler@localai.io>