Transfer: changed syntax to remove the mandatory type annotation in let.

transfer/examples/layout.tra

@@ -1,5 +1,5 @@
 x : Apa
-x = let x : T = y 
+x = let x = y 
      in case y of
          f -> q
          _ -> a

transfer/examples/numerals.tra

@@ -85,8 +85,8 @@ int2bin = int2bin_ End
 
 int2bin_ : Binary_Tree Bin -> Integer -> Binary_Tree Bin
 int2bin_ b 0 = b
-int2bin_ b n = let d : Integer = if n % 2 == 0 then Zero else One
-		   q : Integer = n / 2
+int2bin_ b n = let d = if n % 2 == 0 then Zero else One
+		   q = n / 2
                 in int2bin_ (d b) q
 
 num2bin : Tree Numeral -> Binary_Tree Bin

transfer/examples/widesnake.tra

@@ -13,7 +13,7 @@ isSnake _ x = case x of
 
 wideSnake : (A : Cat) -> Tree A -> Tree A
 wideSnake _ x = case x of
-		    Wide y -> let y' : CN = wideSnake ? y
+		    Wide y -> let y' = wideSnake ? y
                                in if isSnake CN y' then Thick y' else Wide y'
 		    _ -> composOp ? ? compos_Tree ? wideSnake x