Update README with new env vars

Remove dataplaneapi junk

haproxy/dataplaneapi.hcl

@@ -1,29 +0,0 @@
-config_version = 2
-
-name = "meet_bedbug"
-
-mode = "single"
-
-dataplaneapi {
-  user "admin" {
-    insecure = true
-    password = "adminpwd"
-  }
-
-  transaction {
-    transaction_dir = "/tmp/haproxy"
-  }
-
-  advertised {}
-}
-
-haproxy {
-  config_file = "/etc/haproxy/haproxy.cfg"
-  haproxy_bin = "/usr/local/sbin/haproxy"
-
-  reload {
-    reload_delay = 5
-    reload_cmd   = "service haproxy reload"
-    restart_cmd  = "service haproxy restart"
-  }
-}