[proof] Attempt to deprecate some V82 parts of the proof API.

I followed what seems to be the intention of the code, with the
original intention of remove the global imperative proof state.

However, I fully fail to see why the new API is better than the old
one. In fact the opposite seems the contrary.

Still big parts of the "new proof engine" seem unfinished, and I'm
afraid I am not the right person to know what direction things should
take.

1 files changed, 2 insertions, 3 deletions

diff --git a/proofs/pfedit.ml b/proofs/pfedit.ml
index 2d4aba17c..c526ae000 100644
--- a/proofs/pfedit.ml
+++ b/proofs/pfedit.ml
@@ -51,9 +51,8 @@ end
 
 let get_nth_V82_goal i =
   let p = Proof_global.give_me_the_proof () in
-  let { it=goals ; sigma = sigma; } = Proof.V82.subgoals p in
-  try
-          { it=(List.nth goals (i-1)) ; sigma=sigma; }
+  let goals,_,_,_,sigma = Proof.proof p in
+  try { it = List.nth goals (i-1) ; sigma }
   with Failure _ -> raise NoSuchGoal
 
 let get_goal_context_gen i =