[retro-gtk/c-port: 33/39] Drop unused API_VERSION and ENV_PLUGIN_PATH

[Adrien Plazas <aplazas src gnome org>]

commit 7045c4a305f3a02f3a442e3e2e1288718add9362
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 f8af196..1176f14 100644
--- a/retro-gtk/Makefile.am
+++ b/retro-gtk/Makefile.am
@@ -31,7 +31,6 @@ libretro_gtk_la_SOURCES = \
        input/retro-keyboard-key.c \
        \
        core.vala \
-       retro.vala \
        retro-cairo-display.c \
        retro-core-descriptor.c \
        retro-core-view.c \