we do not install any plugins from core vdr

Signed-off-by: Martin Dummer <martin.dummer@gmx.net>
Reviewed-by: Joerg Bornkessel <hd_brummy@gentoo.org>
diff -Naur vdr-2.4.0.orig/Makefile vdr-2.4.0/Makefile
--- vdr-2.4.0.orig/Makefile	2017-05-29 10:48:42.000000000 +0200
+++ vdr-2.4.0/Makefile	2019-03-14 12:08:56.857495048 +0100
@@ -125,7 +125,7 @@
 VDRVERSION = $(shell sed -ne '/define VDRVERSION/s/^.*"\(.*\)".*$$/\1/p' config.h)
 APIVERSION = $(shell sed -ne '/define APIVERSION/s/^.*"\(.*\)".*$$/\1/p' config.h)
 
-all: vdr i18n plugins
+all: vdr i18n
 
 # Implicit rules:
 
@@ -271,7 +271,7 @@
 
 # Install the files (note that 'install-pc' must be first!):
 
-install: install-pc install-bin install-conf install-doc install-plugins install-i18n install-includes
+install: install-pc install-bin install-conf install-doc install-i18n install-includes
 
 # VDR binary: