remove legacy elasticsearch config from sample config

Author: woodsaj

metrictank-sample.ini

@@ -69,17 +69,6 @@ cassandra-write-queue-size = 100000
 # CQL protocol version. cassandra 3.x needs v3 or 4.
 cql-protocol-version = 4
 
-
-### Metric metadata index ###
-
-
-## elasticsearch
-# elasticsearch address for metric definitions
-elastic-addr = localhost:9200
-# index name for storing metric index
-index-name = metric
-
-
 ### Profiling, instrumentation and logging ###
 
 # see https://golang.org/pkg/runtime/#SetBlockProfileRate