[gitg] Do not install 512x512 app icon

[Jesse van den Kieboom <jessevdk src gnome org>]

commit 6a182c1d396abad59de3700dc9f328bd4620868c
Author: Jesse van den Kieboom <jessevdk gnome org>
Date:   Wed Jun 25 19:56:52 2014 +0200

    Do not install 512x512 app icon
    
    This removes a warning about window icons being too large

 data/icons/Makefile.am                   |    3 +--
 data/icons/hicolor_apps_512x512_gitg.png |  Bin 47188 -> 0 bytes
 2 files changed, 1 insertions(+), 2 deletions(-)
---
diff --git a/data/icons/Makefile.am b/data/icons/Makefile.am
index f5a9c3a..42130d3 100644
--- a/data/icons/Makefile.am
+++ b/data/icons/Makefile.am
@@ -7,8 +7,7 @@ data_icons_public_icons = \
        hicolor_apps_24x24_gitg.png \
        hicolor_apps_32x32_gitg.png \
        hicolor_apps_48x48_gitg.png \
-       hicolor_apps_256x256_gitg.png \
-       hicolor_apps_512x512_gitg.png
+       hicolor_apps_256x256_gitg.png
 
 data_icons_gtk_update_icon_cache = $(GTK_UPDATE_ICON_CACHE) -f -t