[gnome-documents] desktop: Remove obsolete comment

[Debarshi Ray <debarshir src gnome org>]

commit 2c2df66b86f65c0dcba4ba996e7becd6346558b6
Author: Debarshi Ray <debarshir gnome org>
Date:   Tue Feb 9 11:54:36 2016 +0100

    desktop: Remove obsolete comment
    
    We have had icons for gnome-books for quite some time now.

 data/org.gnome.Books.desktop.in |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)
---
diff --git a/data/org.gnome.Books.desktop.in b/data/org.gnome.Books.desktop.in
index 7c98d6a..49c108f 100644
--- a/data/org.gnome.Books.desktop.in
+++ b/data/org.gnome.Books.desktop.in
@@ -2,7 +2,6 @@
 _Name=Books
 _Comment=Access, manage and share books
 Exec=gnome-books
-# FIXME icon
 Icon=gnome-books
 Terminal=false
 Type=Application