VOL-1643 Unsuitable attribute names are renamed for gRPC Java support

- proto files are modified to support compilation of generated Java code
- schema.proto and yang_options.proto files are deleted since there is no need for netconf in Voltha.
Change-Id: I6d8796d74a284529e5bc5926762e77ceaa31638b
diff --git a/go/voltha/logical_device.pb.go b/go/voltha/logical_device.pb.go
index ecf9196..8ebaa02 100644
--- a/go/voltha/logical_device.pb.go
+++ b/go/voltha/logical_device.pb.go
@@ -6,8 +6,8 @@
 import (
 	fmt "fmt"
 	proto "github.com/golang/protobuf/proto"
-	_ "github.com/opencord/voltha-protos/v2/go/common"
-	openflow_13 "github.com/opencord/voltha-protos/v2/go/openflow_13"
+	_ "github.com/opencord/voltha-protos/v3/go/common"
+	openflow_13 "github.com/opencord/voltha-protos/v3/go/openflow_13"
 	_ "google.golang.org/genproto/googleapis/api/annotations"
 	math "math"
 )
@@ -352,39 +352,40 @@
 func init() { proto.RegisterFile("voltha_protos/logical_device.proto", fileDescriptor_caf139ab3abc8240) }
 
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