Kill gorp (#19786)

* Kill gorp

Gorp is dead. Long live Gorp.

```release-note
NONE
```

store/sqlstore/context.go

@@ -5,8 +5,6 @@ package sqlstore
 
 import (
 	"context"
-
-	"github.com/mattermost/gorp"
 )
 
 // storeContextKey is the base type for all context keys for the store.
@@ -35,14 +33,6 @@ func hasMaster(ctx context.Context) bool {
 	return false
 }
 
-// DBFromContext is a helper utility that returns the DB handle from a given context.
-func (ss *SqlStore) DBFromContext(ctx context.Context) *gorp.DbMap {
-	if hasMaster(ctx) {
-		return ss.GetMaster()
-	}
-	return ss.GetReplica()
-}
-
 // DBXFromContext is a helper utility that returns the sqlx DB handle from a given context.
 func (ss *SqlStore) DBXFromContext(ctx context.Context) *sqlxDBWrapper {
 	if hasMaster(ctx) {