Replacing mb-solr with netcat for search service

docker-compose.yml.diff

diff --git a/docker-compose.yml b/docker-compose.yml
index ec558603..8e0a0393 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -81,24 +81,18 @@ services:
       - search
 
   search:
-    build:
-      context: build/solr
-      args:
-        - MB_SOLR_VERSION=${MB_SOLR_VERSION:-3.1.3}
-    image: musicbrainz-docker_search:${MB_SOLR_VERSION:-3.1.3}
+    image: subfuzion/netcat:latest
     logging:
       driver: "json-file"
       options:
         max-size: "10m"
         max-file: "10"
     restart: unless-stopped
-    environment:
-      - SOLR_HEAP=2g
     expose:
       - "8983"
-    volumes:
-      - solrdata:/opt/solr/server/solr/data
-      - searchdump:/media/searchdump
+    expose:
+      - "8983"
+    command: -l -p 8983 -v
 
   mq:
     build: build/rabbitmq