remove the transfer modules. We don't need anything special, a transfer module is module without concrete syntax

src/GF/Compile/CheckGrammar.hs

@@ -62,8 +62,6 @@ checkModule ms (name,mo) = checkIn (text "checking module" <+> ppIdent name) $ d
     js' <- case mtype mo of
       MTAbstract -> checkMap (checkAbsInfo gr name mo) js
 
-      MTTransfer a b -> checkMap (checkAbsInfo gr name mo) js
-
       MTResource -> checkMap (checkResInfo gr name mo) js
 
       MTConcrete a -> do

src/GF/Compile/ModDeps.hs

@@ -99,8 +99,7 @@ moduleDeps ms = mapM deps ms where
     _ -> mt0 == mt
   -- in the same way; this defines what can be opened
   compatOType mt0 mt = case mt0 of
-    MTAbstract     -> mt == MTAbstract
-    MTTransfer _ _ -> mt == MTAbstract
+    MTAbstract -> mt == MTAbstract
     _ -> case mt of
       MTResource -> True
       MTInterface -> True

src/GF/Compile/ReadFiles.hs

@@ -177,7 +177,6 @@ importsOfModule (m,mi) = (modName m,depModInfo mi [])
     depModType (MTInterface)      xs = xs
     depModType (MTConcrete m2)    xs = modName m2:xs
     depModType (MTInstance m2)    xs = modName m2:xs
-    depModType (MTTransfer o1 o2) xs = depOpen o1 (depOpen o2 xs)
 
     depExtends es xs = foldr depInclude xs es
 

src/GF/Compile/Rename.hs

@@ -131,7 +131,7 @@ tree2status o = case o of
 buildStatus :: SourceGrammar -> Ident -> SourceModInfo -> Err Status
 buildStatus gr c mo = let mo' = self2status c mo in do
     let gr1 = MGrammar ((c,mo) : modules gr)
-        ops = [OSimple e | e <- allExtends gr1 c] ++ allOpens mo
+        ops = [OSimple e | e <- allExtends gr1 c] ++ opens mo
     mods <- mapM (lookupModule gr1 . openedModule) ops
     let sts = map modInfo2status $ zip ops mods    
     return $ if isModCnc mo
@@ -142,9 +142,7 @@ modInfo2status :: (OpenSpec Ident,SourceModInfo) -> (OpenSpec Ident, StatusTree)
 modInfo2status (o,mo) = (o,tree2status o (jments mo))
 
 self2status :: Ident -> SourceModInfo -> StatusTree
-self2status c m = mapTree (info2status (Just c)) js where   -- qualify internal
-  js | isModTrans m = sorted2tree $ tree2list $ jments m 
-     | otherwise    = jments m
+self2status c m = mapTree (info2status (Just c)) (jments m)
 
 forceQualif o = case o of
   OSimple i   -> OQualif i i