Remove superfluous DemoI.gf.

lib/resource/demo/DemoI.gf

@@ -1,23 +0,0 @@
---# -path=.:alltenses
-
-concrete DemoEng of Demo = 
-  NounEng - [AdvCN], 
---  VerbEng, 
-  ClauseEng, --
-  AdjectiveEng,
-  AdverbEng,
-  NumeralEng,
-  SentenceEng,
-  QuestionEng,
-  RelativeEng,
-  ConjunctionEng,
-  PhraseEng,
-  TextX,
-  StructuralEng,
-  IdiomEng,
-  LexiconEng
-  ** {
-
-flags startcat = Phr ; unlexer = text ; lexer = text ;
-
-} ;