[easytag] Drop an unnecessary include directive

[David King <davidk src gnome org>]

commit 9162803e58d9a15d5104ea42fa129a87823f6649
Author: David King <amigadave amigadave com>
Date:   Thu Mar 26 18:54:02 2015 +0100

    Drop an unnecessary include directive

 src/about.c |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)
---
diff --git a/src/about.c b/src/about.c
index e05a2e5..386e12c 100644
--- a/src/about.c
+++ b/src/about.c
@@ -23,8 +23,6 @@
 
 #include <glib/gi18n.h>
 
-#include "easytag.h"
-
 void
 et_show_about_dialog (GtkWindow *parent)
 {