[gnome-color-manager] Remove forgotten libcanberra include

[Jan Tojnar <jtojnar src gnome org>]

commit 66aea36411477f284fa8a379b3bde282385d281c
Author: Jan Tojnar <jtojnar gmail com>
Date:   Wed Apr 8 16:41:32 2020 +0200

    Remove forgotten libcanberra include

 src/gcm-viewer.c | 1 -
 1 file changed, 1 deletion(-)
---
diff --git a/src/gcm-viewer.c b/src/gcm-viewer.c
index 77463af5..d778877d 100644
--- a/src/gcm-viewer.c
+++ b/src/gcm-viewer.c
@@ -12,7 +12,6 @@
 #include <gdk/gdkx.h>
 #include <glib/gstdio.h>
 #include <locale.h>
-#include <canberra-gtk.h>
 #include <colord.h>
 #include <math.h>