Shrink LDF

Code snippet

USE DatabaseName
GO
-- Truncate the log by changing the database recovery model to SIMPLE.
ALTER DATABASE DatabaseName
SET RECOVERY SIMPLE;
GO
-- Shrink the truncated log file to 1 MB.
DBCC SHRINKDATABASE('DatabaseName')
GO
-- Reset the database recovery model.
ALTER DATABASE DatabaseName
SET RECOVERY FULL;
GO

https://msdn.microsoft.com/en-us/library/ms189493(v=sql.90).aspx