Removed Key(Object) constructor because it's never the right choice from a performance perspective.
Removed Key(Object) constructor because it's never the right choice from a performance perspective.

alexandrnikitin/aerospike-client-java,wgpshashank/aerospike-client-java,alexandrnikitin/aerospike-client-java,Stratio/aerospike-client-java,wgpshashank/aerospike-client-java,pradeepsrinivasan/aerospike-client-java,Stratio/aerospike-client-java,pradeepsrinivasan/aerospike-client-java