remove etcd source

config/source/etcd/options.go

@@ -1,70 +0,0 @@
-package etcd
-
-import (
-	"context"
-	"time"
-
-	"github.com/micro/go-micro/config/source"
-)
-
-type addressKey struct{}
-type prefixKey struct{}
-type stripPrefixKey struct{}
-type authKey struct{}
-type dialTimeoutKey struct{}
-
-type authCreds struct {
-	Username string
-	Password string
-}
-
-// WithAddress sets the etcd address
-func WithAddress(a ...string) source.Option {
-	return func(o *source.Options) {
-		if o.Context == nil {
-			o.Context = context.Background()
-		}
-		o.Context = context.WithValue(o.Context, addressKey{}, a)
-	}
-}
-
-// WithPrefix sets the key prefix to use
-func WithPrefix(p string) source.Option {
-	return func(o *source.Options) {
-		if o.Context == nil {
-			o.Context = context.Background()
-		}
-		o.Context = context.WithValue(o.Context, prefixKey{}, p)
-	}
-}
-
-// StripPrefix indicates whether to remove the prefix from config entries, or leave it in place.
-func StripPrefix(strip bool) source.Option {
-	return func(o *source.Options) {
-		if o.Context == nil {
-			o.Context = context.Background()
-		}
-
-		o.Context = context.WithValue(o.Context, stripPrefixKey{}, strip)
-	}
-}
-
-// Auth allows you to specify username/password
-func Auth(username, password string) source.Option {
-	return func(o *source.Options) {
-		if o.Context == nil {
-			o.Context = context.Background()
-		}
-		o.Context = context.WithValue(o.Context, authKey{}, &authCreds{Username: username, Password: password})
-	}
-}
-
-// WithDialTimeout set the time out for dialing to etcd
-func WithDialTimeout(timeout time.Duration) source.Option {
-	return func(o *source.Options) {
-		if o.Context == nil {
-			o.Context = context.Background()
-		}
-		o.Context = context.WithValue(o.Context, dialTimeoutKey{}, timeout)
-	}
-}