fix: xp not getting calculated correctly when a study session is deleted

Signed-off-by: brookjeynes <[e-mail]>

internal/consumer/ingester.go

···
 		}
 
 		i.Logger.Debug("deleting study session from pds request")
-		err = db.DeleteStudySessionByRkey(tx, did, e.Commit.RKey)
+		err = db.RemoveXPForSession(tx, did, e.Commit.RKey, logger)
 		if err != nil {
 			tx.Rollback()
-			return fmt.Errorf("failed to delete study session record: %w", err)
+			return fmt.Errorf("failed to remove xp for session: %w", err)
 		}
 
-		err = db.RemoveXPForSession(tx, did, e.Commit.RKey)
+		err = db.DeleteStudySessionByRkey(tx, did, e.Commit.RKey)
 		if err != nil {
 			tx.Rollback()
-			return fmt.Errorf("failed to remove xp for session: %w", err)
+			return fmt.Errorf("failed to delete study session record: %w", err)
 		}
 
 		return tx.Commit()