remove mk code proposal script

lib/archethic/governance/code.ex

@@ -160,37 +160,6 @@ defmodule Archethic.Governance.Code do
     match?({_, 0}, res)
   end
 
-  # @spec apply_proposal(Proposal.t()) :: :ok
-  # def apply_proposal(
-  #       proposal = %Proposal{description: description, address: address},
-  #       src_dir \\ @src_dir
-  #     ) do
-  #   random = :crypto.strong_rand_bytes(4) |> Base.encode16()
-  #   branch_name = "prop_#{random}_#{Base.encode16(address)}"
-
-  #   cmd_options = [stderr_to_stdout: true, cd: src_dir]
-  #   git_fn = fn args -> System.cmd("git", args, cmd_options) end
-
-  #   with {:apply_diff, {_, 0}} <- {:apply_diff, apply_diff(proposal, src_dir, true)},
-  #        {:git_checkout, {_, 0}} <- {:git_checkout, git_fn.(["checkout", "-b", branch_name])},
-  #        {:git_add, {_, 0}} <- {:git_add, git_fn.(["add", "--all"])},
-  #        {:git_commit, {_, 0}} <- {:git_commit, git_fn.(["commit", "-m", description])} do
-  #     :ok
-  #   else
-  #     {:apply_diff, {_, error_code}} ->
-  #       raise "apply_diff_to_current_branch failed with error code #{error_code}"
-
-  #     {:git_checkout, {_, error_code}} ->
-  #       raise "git_checkout failed with error code #{error_code}"
-
-  #     {:git_add, {_, error_code}} ->
-  #       raise "git_add failed with error code #{error_code}"
-
-  #     {:git_commit, {_, error_code}} ->
-  #       raise "git_commit failed with error code #{error_code}"
-  #   end
-  # end
-
   defp apply_diff(
          %Proposal{changes: changes, address: address},
          src_dir,