[gnome-terminal] profile: editor: Don't compare alpha colour components

[Christian Persch <chpe src gnome org>]

commit 49d1f8fbab79a05d082aa6391325c1890609e797
Author: Christian Persch <chpe gnome org>
Date:   Sat Feb 13 21:22:25 2016 +0100

    profile: editor: Don't compare alpha colour components

 src/profile-editor.c |    5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)
---
diff --git a/src/profile-editor.c b/src/profile-editor.c
index 87fae40..b6dbcd9 100644
--- a/src/profile-editor.c
+++ b/src/profile-editor.c
@@ -211,14 +211,13 @@ static gboolean
 rgba_equal (const GdkRGBA *a,
             const GdkRGBA *b)
 {
-  gdouble dr, dg, db, da;
+  gdouble dr, dg, db;
 
   dr = a->red - b->red;
   dg = a->green - b->green;
   db = a->blue - b->blue;
-  da = a->alpha - b->alpha;
 
-  return (dr * dr + dg * dg + db * db + da * da) < 1e-4;
+  return (dr * dr + dg * dg + db * db) < 1e-4;
 }
 
 static gboolean