build: remove test dependencies from published pom file
build: remove test dependencies from published pom file

See elastic/elasticsearch#2063

Original commit: elastic/x-pack-elasticsearch@3653368363e861b3474b1343f695f0e479ad9f8e

GlenRSmith/elasticsearch,robin13/elasticsearch,gfyoung/elasticsearch,GlenRSmith/elasticsearch,robin13/elasticsearch,gfyoung/elasticsearch,uschindler/elasticsearch,nknize/elasticsearch,strapdata/elassandra,HonzaKral/elasticsearch,uschindler/elasticsearch,scorpionvicky/elasticsearch,gingerwizard/elasticsearch,vroyer/elassandra,uschindler/elasticsearch,gingerwizard/elasticsearch,gfyoung/elasticsearch,uschindler/elasticsearch,GlenRSmith/elasticsearch,scorpionvicky/elasticsearch,nknize/elasticsearch,gingerwizard/elasticsearch,strapdata/elassandra,nknize/elasticsearch,strapdata/elassandra,coding0011/elasticsearch,robin13/elasticsearch,GlenRSmith/elasticsearch,uschindler/elasticsearch,gfyoung/elasticsearch,vroyer/elassandra,nknize/elasticsearch,gingerwizard/elasticsearch,strapdata/elassandra,gingerwizard/elasticsearch,scorpionvicky/elasticsearch,robin13/elasticsearch,scorpionvicky/elasticsearch,HonzaKral/elasticsearch,gingerwizard/elasticsearch,HonzaKral/elasticsearch,coding0011/elasticsearch,gfyoung/elasticsearch,vroyer/elassandra,strapdata/elassandra,scorpionvicky/elasticsearch,coding0011/elasticsearch,gingerwizard/elasticsearch,coding0011/elasticsearch,coding0011/elasticsearch,robin13/elasticsearch,nknize/elasticsearch,HonzaKral/elasticsearch,GlenRSmith/elasticsearch