Clean up trailing whitespaces and an unused definition.

FiniteSets/fsets/operations.v

@@ -103,21 +103,6 @@ Section operations.
         split ; apply p.
   Defined.
 
-  Definition map (A B : Type) (f : A -> B) : FSet A -> FSet B.
-  Proof.
-    hrecursion.
-    - apply ∅.
-    - intro a.
-      apply {|f a|}.
-    - apply (∪).
-    - apply assoc.
-    - apply comm.
-    - apply nl.
-    - apply nr.
-    - intros.
-      apply idem.
-  Defined.
-
   Local Ltac remove_transport
     := intros ; apply path_forall ; intro Z ; rewrite transport_arrow
        ; rewrite transport_const ; simpl.