[REST-TEST] Remove check for snapshot.
[REST-TEST] Remove check for snapshot.

This change removes the check for snapshot in the info test.

Original commit: elastic/x-pack-elasticsearch@5eb0618b563c82451f94a3daaccc23ca74cb2cfc

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