Removed on-demand parser generation from the PGF interpreter.

GF.cabal

@@ -587,10 +587,6 @@ library
     GF.Data.Assoc
     GF.Data.ErrM
     GF.Text.UTF8
--- needed only for the on demand generation of PMCFG
-    GF.Data.BacktrackM
-    GF.Compile.GenerateFCFG
-    GF.Compile.GeneratePMCFG
 
 executable gf
   build-depends: base,

src/PGF.hs

@@ -69,7 +69,6 @@ import PGF.Raw.Parse
 import PGF.Raw.Print (printTree)
 import PGF.Parsing.FCFG
 import qualified PGF.Parsing.FCFG.Incremental as Incremental
-import qualified GF.Compile.GeneratePMCFG as PMCFG
 import GF.Text.UTF8
 
 import GF.Data.ErrM
@@ -205,14 +204,7 @@ complete :: PGF -> Language -> Category -> String
 readPGF f = do
   s <- readFile f >>= return . decodeUTF8 -- pgf is in UTF8, internal in unicode
   g <- parseGrammar s
-  return $! addParsers $ toPGF g
-
--- Adds parsers for all concretes that don't have a parser.
-addParsers :: PGF -> PGF
-addParsers pgf = pgf { concretes = Map.map conv (concretes pgf) }
-  where
-    conv cnc | isJust (parser cnc) = cnc
-             | otherwise = cnc { parser = Just (PMCFG.convertConcrete (abstract pgf) cnc) }
+  return $! toPGF g
 
 linearize pgf lang = concat . take 1 . PGF.Linearize.linearizes pgf (mkCId lang)