cleaning up T Log backups at the end of a full backup

In prod  full backup starts at 12.02 and completes at 4.00am .our full backup have all data in it and also getting t-log backup files same time .but the transaction log doesn't get truncated by backups .we can delete all t-log files from 12.02am -11.30 pm .or 11 pm . for cleaning up T Log backups at the end of a full backup, what would the TSQL look like? My full backup job query is :

DECLARE @fname NVARCHAR(100) = N'V:\Backup\MYDB_backup_' + CONVERT(NVARCHAR(10),

SYSDATETIME(), 112 ) + N'.bak';

BACKUP DATABASE [MYDB] TO DISK = @fname WITH COMPRESSION, STATS = 10

DECLARE @backupSetId AS INT

SELECT @backupSetId = position FROM msdb..backupset WHERE database_name=N'MYDB' AND backup_set_id

= ( SELECT MAX( backup_set_id ) FROM msdb..backupset WHERE database_name=N'MYDB' );

IF @backupSetId IS NULL

BEGIN

RAISERROR( N'Verify failed. Backup information for database ''MYDB'' not found.', 16, 1 )

END

RESTORE VERIFYONLY FROM DISK = @fname WITH FILE = @backupSetId

how do i add cleaning up T-log backups at the end of a full backup ?

we are getting t-log backups every 24 minutes and getting full backup at night .