I too would like to know if you need to delete files in step 8, you say:
Again go 2 folders back, this time to find the dbc folder.
brazil_kits.dbc
forbidden names.dbc
Licensing2.dbc
Licensing2_chn.dbc
This will prevent Brazilian clubs from reverting to 3-letter names and will allow certain kits to be visible again.
But you didn't say whether to delete anything in this folder.