Move database drivers from test files into the plugin files (#2986)

plugins/database/mssql/mssql.go

@@ -6,6 +6,7 @@ import (
 	"strings"
 	"time"
 
+	_ "github.com/denisenkom/go-mssqldb"
 	"github.com/hashicorp/vault/api"
 	"github.com/hashicorp/vault/builtin/logical/database/dbplugin"
 	"github.com/hashicorp/vault/helper/strutil"

plugins/database/mssql/mssql_test.go

@@ -9,7 +9,6 @@ import (
 	"testing"
 	"time"
 
-	_ "github.com/denisenkom/go-mssqldb"
 	"github.com/hashicorp/vault/builtin/logical/database/dbplugin"
 	"github.com/hashicorp/vault/plugins/helper/database/connutil"
 )

plugins/database/mysql/mysql.go

@@ -5,6 +5,7 @@ import (
 	"strings"
 	"time"
 
+	_ "github.com/go-sql-driver/mysql"
 	"github.com/hashicorp/vault/api"
 	"github.com/hashicorp/vault/builtin/logical/database/dbplugin"
 	"github.com/hashicorp/vault/helper/strutil"

plugins/database/mysql/mysql_test.go

@@ -9,7 +9,6 @@ import (
 	"testing"
 	"time"
 
-	_ "github.com/go-sql-driver/mysql"
 	"github.com/hashicorp/vault/builtin/logical/database/dbplugin"
 	"github.com/hashicorp/vault/plugins/helper/database/connutil"
 	dockertest "gopkg.in/ory-am/dockertest.v3"

plugins/database/postgresql/postgresql.go

@@ -14,6 +14,7 @@ import (
 	"github.com/hashicorp/vault/plugins/helper/database/credsutil"
 	"github.com/hashicorp/vault/plugins/helper/database/dbutil"
 	"github.com/lib/pq"
+	_ "github.com/lib/pq"
 )
 
 const (

plugins/database/postgresql/postgresql_test.go

@@ -11,7 +11,6 @@ import (
 
 	"github.com/hashicorp/vault/builtin/logical/database/dbplugin"
 	"github.com/hashicorp/vault/plugins/helper/database/connutil"
-	_ "github.com/lib/pq"
 	dockertest "gopkg.in/ory-am/dockertest.v3"
 )