[gimp] app: annhilate <math.h> from the face of last commit

[N/A <ell src gnome org>]

commit f34ef2ab35148c4a0004b279db4b961d377f6b58
Author: Ell <ell_se yahoo com>
Date:   Sun Feb 19 18:48:18 2017 -0500

    app: annhilate <math.h> from the face of last commit

 app/display/gimpcanvasgrid.c |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)
---
diff --git a/app/display/gimpcanvasgrid.c b/app/display/gimpcanvasgrid.c
index 0a7bada..09038d9 100644
--- a/app/display/gimpcanvasgrid.c
+++ b/app/display/gimpcanvasgrid.c
@@ -20,8 +20,6 @@
 
 #include "config.h"
 
-#include <math.h>
-
 #include <gegl.h>
 #include <gtk/gtk.h>