graphviz: oops; remove graphviz.libcgraph, which is never used

diff --git a/extra/graphviz/libcgraph/libcgraph.factor b/extra/graphviz/libcgraph/libcgraph.factor
deleted file mode 100644 (file)
index 5885917..0000000
--- a/extra/graphviz/libcgraph/libcgraph.factor
+++ /dev/null
@@ -1,76 +0,0 @@
-! Copyright (C) 2011 Alex Vondrak.
-! See http://factorcode.org/license.txt for BSD license.
-USING: alien alien.c-types alien.libraries alien.syntax
-classes.struct combinators system ;
-IN: graphviz.libcgraph
-
-<<
-"libcgraph"
-{
-    { [ os macosx? ] [ "libcgraph.dylib" ] }
-    { [ os unix? ]   [ "libcgraph.so" ] }
-    { [ os winnt? ]  [ "libcgraph.dll" ] }
-} cond cdecl add-library
->>
-
-LIBRARY: libcgraph
-
-! Types
-
-STRUCT: Agdesc_s
-{ directed  uint bits: 1 }
-{ strict    uint bits: 1 }
-{ no_loop   uint bits: 1 }
-{ maingraph uint bits: 1 }
-{ flatlock  uint bits: 1 }
-{ no_write  uint bits: 1 }
-{ has_attrs uint bits: 1 }
-{ has_cmpnd uint bits: 1 } ;
-
-CONSTANT: Agdirected
-    S{ Agdesc_s { directed 1 } { maingraph 1 } }
-CONSTANT: Agstrictdirected
-    S{ Agdesc_s { directed 1 } { strict 1 } { maingraph 1 } }
-CONSTANT: Agundirected
-    S{ Agdesc_s { maingraph 1 } }
-CONSTANT: Agstrictundirected
-    S{ Agdesc_s { strict 1 } { maingraph 1 } }
-
-C-TYPE:  Agraph_t
-C-TYPE:  Agnode_t
-C-TYPE:  Agedge_t
-TYPEDEF: Agdesc_s Agdesc_t
-C-TYPE:  Agdisc_t
-
-! Graphs
-
-FUNCTION: Agraph_t* agopen ( c-string name, Agdesc_t kind, Agdisc_t* disc ) ;
-FUNCTION: int       agclose ( Agraph_t* g ) ;
-FUNCTION: int       agwrite ( Agraph_t* g, void* channel ) ;
-
-! Subgraphs
-
-FUNCTION: Agraph_t* agsubg ( Agraph_t* g, c-string name, int createflag ) ;
-
-! Nodes
-
-FUNCTION: Agnode_t* agnode ( Agraph_t* g, c-string name, int createflag ) ;
-FUNCTION: Agnode_t* agfstnode ( Agraph_t* g ) ;
-FUNCTION: Agnode_t* agnxtnode ( Agraph_t* g, Agnode_t* n ) ;
-
-! Edges
-
-FUNCTION: Agedge_t* agedge ( Agraph_t* g,
-                             Agnode_t* t,
-                             Agnode_t* h,
-                             c-string name,
-                             int createflag ) ;
-FUNCTION: Agedge_t* agfstedge ( Agraph_t* g, Agnode_t* n ) ;
-FUNCTION: Agedge_t* agnxtedge ( Agraph_t* g, Agedge_t* e, Agnode_t* n ) ;
-
-! String attributes
-
-FUNCTION: int agsafeset ( void* obj,
-                          c-string name,
-                          c-string value,
-                          c-string default ) ;