Merge branch 'errcode' of github.com:OpenIMSDK/Open-IM-Server into errcode

# Conflicts:
#	cmd/cmdutils/main.go

go.mod

@@ -1,6 +1,6 @@
 module OpenIM
 
-go 1.16
+go 1.18
 
 require (
 	firebase.google.com/go v3.13.0+incompatible

pkg/discoveryregistry/discovery_register.go

@@ -13,8 +13,3 @@ type SvcDiscoveryRegistry interface {
 	RegisterConf2Registry(key string, conf []byte) error
 	GetConfFromRegistry(key string) ([]byte, error)
 }
-
-func GetConns(serviceName string) {
-	GetConns(serviceName string, opts ...grpc.DialOption) ([]*grpc.ClientConn, error)
-
-}