JAVA-814: Remove findOne check for index existence in createIndex method.  It's not necessary, and it causes an error on text indices on "$**" field.
JAVA-814: Remove findOne check for index existence in createIndex method.  It's not necessary, and it causes an error on text indices on "$**" field.

gianpaj/mongo-java-driver,wanggc/mongo-java-driver,wanggc/mongo-java-driver,rozza/mongo-java-driver,kay-kim/mongo-java-driver,PSCGroup/mongo-java-driver,jyemin/mongo-java-driver,davydotcom/mongo-java-driver,rozza/mongo-java-driver,jsonking/mongo-java-driver,jsonking/mongo-java-driver,davydotcom/mongo-java-driver,jyemin/mongo-java-driver