You can remove a logical reportfile with toolkit as follows:
Start toolkit on your database:
c:\> toolkit dbname
Select 3 - Report Generator Menu from the Toolkit Development Menu.
Select M3 - Remove Report Program from the Report Generator Menu.
Enter the logical reportfile name and press STORE <F5> to remove the file, or CANCEL <F1>-X to return without removing the file.
To remove a logical reportfile with a command, enter:
c:\> rptrm -v lfname
Lfname is the name of the logical reportfile to remove.