[TEST] remove watermark flood from static config

Not compatible with 5.x, and I don't think we need it anyway.
If needed later we can add some sort of check, although
version comparisons in bash are gross (and we have to deal with
.x versions)

travis/download_and_run_es.sh

@@ -4,7 +4,6 @@ if [ -z $ES_VERSION ]; then
     exit 1;
 fi;
 
-
 killall java 2>/dev/null
 
 which java
@@ -24,11 +23,9 @@ find . -name "elasticsearch.yml" | while read TXT ; do echo 'path.repo: ["/tmp"]
 find . -name "elasticsearch.yml" | while read TXT ; do echo 'node.max_local_storage_nodes: 1' >> $TXT ; done
 find . -name "elasticsearch.yml" | while read TXT ; do echo 'cluster.routing.allocation.disk.watermark.low: 1b' >> $TXT ; done
 find . -name "elasticsearch.yml" | while read TXT ; do echo 'cluster.routing.allocation.disk.watermark.high: 1b' >> $TXT ; done
-find . -name "elasticsearch.yml" | while read TXT ; do echo 'cluster.routing.allocation.disk.watermark.flood_stage: 1b' >> $TXT ; done
 find . -name "elasticsearch.yml" | while read TXT ; do echo 'node.attr.testattr: test' >> $TXT ; done
 find . -name "elasticsearch.yml" | while read TXT ; do echo 'script.max_compilations_per_minute: 2048' >> $TXT ; done
 
-
 echo "Starting Elasticsearch v${ES_VERSION}"
 
 ./elasticsearch-*/bin/elasticsearch -d