[QA] remove unnecessary module, and allow on more module to use CPP

Crypto/Cipher/Types/GF.hs

@@ -13,12 +13,11 @@ module Crypto.Cipher.Types.GF
       xtsGFMul
     ) where
 
-import           Control.Applicative
+import           Crypto.Internal.Imports
 import           Crypto.Internal.ByteArray (ByteArray, withByteArray)
 import qualified Crypto.Internal.ByteArray as B
 import           Foreign.Storable
 import           Foreign.Ptr
-import           Data.Word
 import           Data.Bits
 
 -- block size need to be 128 bits.

QA.hs

@@ -25,6 +25,7 @@ perModuleAllowedExtensions =
     , ("Crypto/Internal/Memory.hs", [MagicHash, UnboxedTuples])
     , ("Crypto/Internal/Compat.hs", [CPP])
     , ("Crypto/Internal/CompatPrim.hs", [CPP,MagicHash])
+    , ("Crypto/Internal/Endian.hs", [CPP])
     ]
 
 disallowedModules =