[gnome-session] Revert "main: tell Qt applications to look like GNOME"

[Ray Strode <halfline src gnome org>]

commit d4b0699e8d42269c14aa25aad17a5af816a4d0ef
Author: Ray Strode <rstrode redhat com>
Date:   Mon Oct 24 09:56:43 2016 -0400

    Revert "main: tell Qt applications to look like GNOME"
    
    This reverts commits:
    
    971baf2e225abc5a67bd0c149f4cbfdb0ef8c549
    e833cd1b88ca2107d9ff41f452518934556a5427
    ce4208add3b49d440e0c418229774dd802ee6b87
    
    https://bugzilla.gnome.org/show_bug.cgi?id=762681

 gnome-session/main.c |    6 ------
 1 files changed, 0 insertions(+), 6 deletions(-)
---
diff --git a/gnome-session/main.c b/gnome-session/main.c
index 614c342..5d6b00f 100644
--- a/gnome-session/main.c
+++ b/gnome-session/main.c
@@ -406,12 +406,6 @@ main (int argc, char **argv)
          */
         gsm_util_setenv ("XDG_MENU_PREFIX", "gnome-");
 
-        /* Tell Qt to try to make Qt applications look like gnome
-         */
-        if (g_getenv ("QT_QPA_PLATFORMTHEME") == NULL) {
-                gsm_util_setenv ("QT_QPA_PLATFORMTHEME", "qgnomeplatform");
-        }
-
         /* hack to fix keyring until we can reorder things in 3.20
          * https://bugzilla.gnome.org/show_bug.cgi?id=738205
          */