thodg/libgit2

diff --git a/src/graph.c b/src/graph.c
index db4d730..ff0a846 100644
--- a/src/graph.c
+++ b/src/graph.c
@@ -6,15 +6,8 @@
  * a Linking Exception. For full terms see the included COPYING file.
  */
 
-#include "repository.h"
 #include "revwalk.h"
-#include "buffer.h"
 #include "merge.h"
-#include "refs.h"
-#include "git2/repository.h"
-#include "git2/merge.h"
-#include "git2/reset.h"
-#include "commit_list.h"
 #include "git2/graph.h"
 
 static int ahead_behind(git_commit_list_node *one, git_commit_list_node *two,