prune imports on rebase

Author: vmchale

clash-lib/src/Clash/Normalize.hs

@@ -71,7 +71,7 @@ import           Clash.Core.Var                   (Id, varName, varType)
 import           Clash.Core.VarEnv
   (VarEnv, VarSet, elemVarSet, eltsVarEnv, emptyInScopeSet, emptyVarEnv, emptyVarSet,
    extendVarEnv, extendVarSet, lookupVarEnv, mapVarEnv, mapMaybeVarEnv,
-   mkVarEnv, mkVarSet, notElemVarEnv, notElemVarSet, nullVarEnv, unionVarEnv)
+   mkVarEnv, mkVarSet, notElemVarEnv, notElemVarSet, nullVarEnv)
 import           Clash.Debug                      (traceIf)
 import           Clash.Driver.Types
   (BindingMap, Binding(..), DebugOpts(..), ClashEnv(..))

clash-lib/src/Clash/Normalize/PrimitiveReductions.hs

@@ -38,7 +38,6 @@
 
 module Clash.Normalize.PrimitiveReductions where
 
-import qualified Control.Concurrent.MVar.Lifted   as MVar
 import qualified Control.Lens                     as Lens
 import           Control.Lens                     ((.=))
 import           Data.Bifunctor                   (second)