[gnome-games] build-sys: Remove duplicate EXTRA_DIST definition

[Christophe Fergeau <teuf src gnome org>]

commit 6dc379c282ab5b291f3a92fe9284852fcc049a24
Author: Christophe Fergeau <cfergeau redhat com>
Date:   Mon May 9 19:15:33 2016 +0200

    build-sys: Remove duplicate EXTRA_DIST definition
    
    This silences warnings at autogen.sh time:
    
    plugins/desktop/data/Makefile.am:6: warning: EXTRA_DIST multiply defined in condition TRUE ...
    plugins/desktop/data/Makefile.am:1: ... 'EXTRA_DIST' previously defined here
    plugins/mame/data/Makefile.am:6: warning: EXTRA_DIST multiply defined in condition TRUE ...
    plugins/mame/data/Makefile.am:1: ... 'EXTRA_DIST' previously defined here

 plugins/desktop/data/Makefile.am |    2 --
 plugins/mame/data/Makefile.am    |    2 --
 2 files changed, 0 insertions(+), 4 deletions(-)
---
diff --git a/plugins/desktop/data/Makefile.am b/plugins/desktop/data/Makefile.am
index 69a6144..3e168a3 100644
--- a/plugins/desktop/data/Makefile.am
+++ b/plugins/desktop/data/Makefile.am
@@ -1,5 +1,3 @@
-EXTRA_DIST = $(plugin_DATA)
-
 plugindir = $(libdir)/gnome-games/plugins
 dist_plugin_DATA = desktop.plugin
 
diff --git a/plugins/mame/data/Makefile.am b/plugins/mame/data/Makefile.am
index 470b5a3..cc41123 100644
--- a/plugins/mame/data/Makefile.am
+++ b/plugins/mame/data/Makefile.am
@@ -1,5 +1,3 @@
-EXTRA_DIST = $(plugin_DATA)
-
 plugindir = $(libdir)/gnome-games/plugins
 dist_plugin_DATA = mame.plugin