Remove buildtime and runtime dependency graph. It is useless on normal derivations.

src/lib/Hydra/View/NixDepGraph.pm

@@ -1,23 +0,0 @@
-package Hydra::View::NixDepGraph;
-
-use strict;
-use base qw/Catalyst::View/;
-use IO::Pipe;
-
-sub process {
-    my ($self, $c) = @_;
-    
-    $c->response->content_type('image/svg+xml');
-
-    my @storePaths = @{$c->stash->{storePaths}};
-
-    my $fh = new IO::Handle;
-    
-    open $fh, "nix-store --query --graph @storePaths | dot -Tsvg:cairo -Gdpi=100 -Gsize=20,20 -Gbgcolor=transparent |";
-
-    $c->response->body($fh);
-    
-    return 1;
-}
-
-1;