[retro-gtk/wip/aplazas/c-port: 17/19] Drop unused API_VERSION and ENV_PLUGIN_PATH

[Adrien Plazas <aplazas src gnome org>]

commit d18a1f005360462256d0377a813b05880e6b7ea5
Author: Adrien Plazas <kekun plazas laposte net>
Date:   Mon Sep 25 13:36:37 2017 +0200

    Drop unused API_VERSION and ENV_PLUGIN_PATH

 retro-gtk/Makefile.am |    1 -
 retro-gtk/retro.vala  |   14 --------------
 2 files changed, 0 insertions(+), 15 deletions(-)
---
diff --git a/retro-gtk/Makefile.am b/retro-gtk/Makefile.am
index 7b31e4d..0ac27f0 100644
--- a/retro-gtk/Makefile.am
+++ b/retro-gtk/Makefile.am
@@ -73,7 +73,6 @@ retro_gtk_private_h_sources = \
        $(NULL)
 
 libretro_gtk_la_SOURCES = \
-       retro.vala \
        retro-analog-id.c \
        retro-analog-index.c \
        retro-cairo-display.c \