base: drop redundant Typeable derivings

Thanks to #9858 `Typeable` doesn't need to be explicitly derived anymore.
This also makes `AutoDeriveTypeable` redundant, as well as some imports of
`Typeable` (removal of whose may be beneficial to #9707). This commit
removes several such now redundant use-sites in `base`.

Reviewed By: austin, ekmett

Differential Revision: https://phabricator.haskell.org/D712

1 files changed, 0 insertions, 1 deletions

diff --git a/libraries/base/Data/Monoid.hs b/libraries/base/Data/Monoid.hs
index 82c01603ca..c5a4d8bdf9 100644
--- a/libraries/base/Data/Monoid.hs
+++ b/libraries/base/Data/Monoid.hs
@@ -1,6 +1,5 @@
 {-# LANGUAGE Trustworthy #-}
 {-# LANGUAGE NoImplicitPrelude #-}
-{-# LANGUAGE AutoDeriveTypeable #-}
 {-# LANGUAGE DeriveGeneric #-}
 {-# LANGUAGE GeneralizedNewtypeDeriving #-}
 {-# LANGUAGE PolyKinds #-}