w2v-server: include hostname in hypnotoad pip_file

This allows for running w2v-server on multiple hosts.
diff --git a/w2v-dereko-2021-I.conf b/w2v-dereko-2021-I.conf
index 3c856ea..d803531 100644
--- a/w2v-dereko-2021-I.conf
+++ b/w2v-dereko-2021-I.conf
@@ -3,7 +3,7 @@
     listen  => ['http://*:5673'],
     trusted_proxies => ['10.0/8', '127.0.0.1'],
     proxy => 1,
-    pid_file => 'w2v-dereko-2021-i.pid',
+    pid_file => 'w2v-dereko-2021-i.'. `hostname -s | tr -d "\n"` .'.pid',
     workers => 4
   },
 
@@ -14,7 +14,6 @@
 
   w2v => {
     vecs => "/vol/work/kupietz/Work2/kl/trunk/Analysemethoden/word2vec/models/dereko-2021-i.vecs"
-#    vecs => "/vol/work/kupietz/Work2/kl/trunk/Analysemethoden/word2vec/models/dereko-2020-ii.vecs"
   },
 
   Piwik => {