Adapt tests to throw-away CA

t/no_ssl.t

@@ -7,7 +7,6 @@ __DATA__
 
 === TEST 1: HTTP connection, no SSL
 --- main_config
-    env X509_VOMS_DIR=t/vomsdir;
     load_module /etc/nginx/modules/ngx_http_voms_module.so;
 --- http_config
     client_body_temp_path /tmp/client_temp;