Remove interface service based on no implementations nor no clear use

gNMI can set all of these configurations at this point
This service no longer is needed
Also the reset counters actually breaks many streaming implementations

compile_protos.sh

@@ -4,7 +4,7 @@ set -euo pipefail
 proto_imports=".:${GOPATH}/src/github.com/google/protobuf/src:${GOPATH}/src/github.com/googleapis/googleapis:${GOPATH}/src:."
 
 # Go
-for p in types common diag bgp cert factory_reset file healthz interface layer2 mpls system os otdr wavelength_router packet_link_qualification; do
+for p in types common diag bgp cert factory_reset file healthz layer2 mpls system os otdr wavelength_router packet_link_qualification; do
   protoc -I="${proto_imports}" --go-grpc_out=. --go-grpc_opt=paths=source_relative --go_out=. --go_opt=paths=source_relative $p/$p.proto
 done