Fix warnings revealed by v0.14.1 PS release (#48)

* Fix warnings revealed by v0.14.1 PS release

* Update changelog

Author: JordanMartinez

CHANGELOG.md

@@ -11,6 +11,7 @@ New features:
 Bugfixes:
 
 Other improvements:
+- Fix warnings revealed by v0.14.1 PS release (#48 by @JordanMartinez)
 
 ## [v2.0.0](https://github.com/purescript/purescript-ordered-collections/releases/tag/v2.0.0) - 2021-02-26
 

src/Data/Map/Internal.purs

@@ -125,7 +125,7 @@ instance foldableWithIndexMap :: FoldableWithIndex k (Map k) where
   foldMapWithIndex f m = foldMap (uncurry f) $ asList $ toUnfoldable m
 
 instance traversableMap :: Traversable (Map k) where
-  traverse f Leaf = pure Leaf
+  traverse _ Leaf = pure Leaf
   traverse f (Two left k v right) =
     Two <$> traverse f left
         <*> pure k
@@ -142,7 +142,7 @@ instance traversableMap :: Traversable (Map k) where
   sequence = traverse identity
 
 instance traversableWithIndexMap :: TraversableWithIndex k (Map k) where
-  traverseWithIndex f Leaf = pure Leaf
+  traverseWithIndex _ Leaf = pure Leaf
   traverseWithIndex f (Two left k v right) =
     Two <$> traverseWithIndex f left
         <*> pure k