Considering SSLv3 has been "dead" for a while now, and it still completes more handshakes than TLSv1.1, there's really no reason to keep TLSv1.1 around for most sites without very particular concerns. (But we're still holding on to TLSv1.0 until it's in the few-percent range.)
"Is there a reason for still having TLSv1.1 enabled?" https://community.qualys.com/thread/16565
Considering SSLv3 has been "dead" for a while now, and it still completes more handshakes than TLSv1.1, there's really no reason to keep TLSv1.1 around for most sites without very particular concerns. (But we're still holding on to TLSv1.0 until it's in the few-percent range.)