Commment code and options relating to the old partial evaluator

This means that the -old-comp and -new-comp flags are not recognized anymore.

The only functional difference is that printnames were still normalized with
the old partial evaluator. Now that is done with the new partial evaluator.

gf.cabal

@@ -49,9 +49,9 @@ flag server
   Description: Include --server mode
   Default:     True
 
-flag new-comp
-  Description: Make -new-comp the default
-  Default:     True
+--flag new-comp
+--  Description: Make -new-comp the default
+--  Default:     True
 
 flag custom-binary
   Description: Use a customised version of the binary package
@@ -137,8 +137,8 @@ Executable gf
     other-modules: GFServer
     hs-source-dirs: src/server src/server/transfer src/example-based
 
-  if flag(new-comp)
-    cpp-options: -DNEW_COMP
+--if flag(new-comp)
+--  cpp-options: -DNEW_COMP
 
   build-tools: happy, alex>=3
 
@@ -206,7 +206,7 @@ Executable gf
     GF.Compile.TypeCheck.ConcreteNew
     GF.Compile.TypeCheck.TC
     GF.Compile.Compute.Abstract
-    GF.Compile.Compute.Concrete
+--  GF.Compile.Compute.Concrete
     GF.Compile.Compute.ConcreteNew1
     GF.Compile.Compute.ConcreteNew
     GF.Compile.Compute.AppPredefined