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

2 files changed, 2 insertions, 4 deletions

diff --git a/libraries/base/Foreign/C/Types.hs b/libraries/base/Foreign/C/Types.hs
index abaf5c73d6..2b9939c6cc 100644
--- a/libraries/base/Foreign/C/Types.hs
+++ b/libraries/base/Foreign/C/Types.hs
@@ -1,6 +1,6 @@
 {-# LANGUAGE Trustworthy #-}
 {-# LANGUAGE CPP, NoImplicitPrelude, MagicHash, GeneralizedNewtypeDeriving,
-             AutoDeriveTypeable, StandaloneDeriving #-}
+             StandaloneDeriving #-}
 {-# OPTIONS_GHC -fno-warn-unused-binds #-}
 -- XXX -fno-warn-unused-binds stops us warning about unused constructors,
 -- but really we should just remove them if we don't want them
@@ -73,7 +73,6 @@ import Foreign.Storable
 import Data.Bits        ( Bits(..), FiniteBits(..) )
 import Data.Int         ( Int8,  Int16,  Int32,  Int64  )
 import Data.Word        ( Word8, Word16, Word32, Word64 )
-import Data.Typeable
 
 import GHC.Base
 import GHC.Float
diff --git a/libraries/base/Foreign/Ptr.hs b/libraries/base/Foreign/Ptr.hs
index e57da91a3c..efe580a70d 100644
--- a/libraries/base/Foreign/Ptr.hs
+++ b/libraries/base/Foreign/Ptr.hs
@@ -1,6 +1,6 @@
 {-# LANGUAGE Trustworthy #-}
 {-# LANGUAGE CPP, NoImplicitPrelude, MagicHash, GeneralizedNewtypeDeriving,
-             AutoDeriveTypeable, StandaloneDeriving #-}
+             StandaloneDeriving #-}
 
 -----------------------------------------------------------------------------
 -- |
@@ -58,7 +58,6 @@ import GHC.Show
 import GHC.Enum
 
 import Data.Bits
-import Data.Typeable
 import Foreign.Storable ( Storable(..) )
 
 -- | Release the storage associated with the given 'FunPtr', which