DBPW - Enables AutoMTLS for DB plugins (#10220)

This also temporarily disables couchbase, elasticsearch, and
mongodbatlas because the `Serve` function needs to change signatures
and those plugins are vendored in from external repos, causing problems
when building.

plugins/database/mssql/mssql.go

@@ -10,7 +10,6 @@ import (
 	_ "github.com/denisenkom/go-mssqldb"
 	"github.com/hashicorp/errwrap"
 	multierror "github.com/hashicorp/go-multierror"
-	"github.com/hashicorp/vault/api"
 	dbplugin "github.com/hashicorp/vault/sdk/database/dbplugin/v5"
 	"github.com/hashicorp/vault/sdk/database/helper/connutil"
 	"github.com/hashicorp/vault/sdk/database/helper/credsutil"
@@ -45,18 +44,6 @@ func new() *MSSQL {
 	}
 }
 
-// Run instantiates a MSSQL object, and runs the RPC server for the plugin
-func Run(apiTLSConfig *api.TLSConfig) error {
-	dbType, err := New()
-	if err != nil {
-		return err
-	}
-
-	dbplugin.Serve(dbType.(dbplugin.Database), api.VaultPluginTLSProvider(apiTLSConfig))
-
-	return nil
-}
-
 // Type returns the TypeName for this backend
 func (m *MSSQL) Type() (string, error) {
 	return msSQLTypeName, nil