Bio/TreeIO/svggraph.pm: move to another repo with same name.

Remove this into another repo named Bio-TreeIO-svggraph to be released
on its own, in a distribution with the same name.

This drops BioPerl dependency on SVG-Graph and Tree-DAG_Node.

Changes

@@ -73,6 +73,10 @@ be removed.
       separate distribution named Bio-Tree-Draw-Cladogram.  This also
       means BioPerl is no longer dependent on PostScript.
 
+    * The module Bio::TreeIO::svggraph has been moved to a separate
+      distribution named Bio-TreeIO-svggraph.  This also means that
+      BioPerl is no longer dependent on SVG-Graph and Tree-DAG_Node.
+
 
 1.7.2 - "Entebbe"
 

t/Tree/TreeIO.t

@@ -7,7 +7,7 @@ BEGIN {
     use lib '.';
     use Bio::Root::Test;
 
-    test_begin(-tests => 78);
+    test_begin(-tests => 76);
 
     use_ok('Bio::TreeIO');
 }
@@ -125,15 +125,6 @@ if( $verbose > 0  ) {
 $treeio = Bio::TreeIO->new(-verbose => $verbose,
               -file   => test_input_file('test.nhx'));
 
-SKIP: {
-    test_skip(-tests => 2, -requires_module => 'SVG::Graph');
-    my $FILE3 = test_output_file();
-    my $treeout3 = Bio::TreeIO->new(-format => 'svggraph',
-                                             -file => ">$FILE3");
-    ok($treeout3);
-    eval {$treeout3->write_tree($tree);};
-    ok (-s $FILE3);
-}
 
 ok($treeio);
 $tree = $treeio->next_tree;