Independently enable SPDY versions from field trial.

net/socket/next_proto.cc

Index: net/socket/next_proto.cc
diff --git a/net/socket/next_proto.cc b/net/socket/next_proto.cc
index 6b5ee3e028f32077a9ac5795669807201b15375f..4632e9716f51be344e2ac1500a3e2a3eaff91528 100644
--- a/net/socket/next_proto.cc
+++ b/net/socket/next_proto.cc
@@ -6,12 +6,6 @@
 
 namespace net {
 
-NextProtoVector NextProtosHttpOnly() {
-  NextProtoVector next_protos;
-  next_protos.push_back(kProtoHTTP11);
-  return next_protos;
-}
-
 NextProtoVector NextProtosDefaults() {
   NextProtoVector next_protos;
   next_protos.push_back(kProtoHTTP11);
@@ -43,14 +37,4 @@ NextProtoVector NextProtosSpdy31() {
   return next_protos;
 }
 
-NextProtoVector NextProtosSpdy4Http2() {
-  NextProtoVector next_protos;
-  next_protos.push_back(kProtoHTTP11);
-  next_protos.push_back(kProtoQUIC1SPDY3);
-  next_protos.push_back(kProtoSPDY31);
-  next_protos.push_back(kProtoSPDY4_14);
-  next_protos.push_back(kProtoSPDY4);
-  return next_protos;
-}
-
 }  // namespace net