Do not build carla lv2 plugins, useless as we just want tests

Signed-off-by: falkTX <falktx@falktx.com>

.travis.yml

@@ -13,7 +13,7 @@ cache:
 
 env:
   global:
-    - BOOTSTRAP_VERSION=8
+    - BOOTSTRAP_VERSION=9
 
 jobs:
   include:

bootstrap-plugins.sh

@@ -216,7 +216,8 @@ fi
 # ---------------------------------------------------------------------------------------------------------------------
 # carla (backend only)
 
-CARLA_EXTRAFLAGS="HAVE_ALSA=false"
+CARLA_EXTRAFLAGS="CAN_GENERATE_LV2_TTL=false"
+CARLA_EXTRAFLAGS+=" HAVE_ALSA=false"
 CARLA_EXTRAFLAGS+=" HAVE_JACK=false"
 CARLA_EXTRAFLAGS+=" HAVE_PULSEAUDIO=false"
 CARLA_EXTRAFLAGS+=" HAVE_DGL=false"