There is a table at the top of the client.lua. if you CTRL + F, then search the name of the category you would like to remove (the exact names that are in the UI) then you remove all the entries that have that category name. here is an example of exactly what needs to be removed
['Male LSPD Uniform (Short Sleeve)'] = {
category = 'LSPD',
ped = 'mp_m_freemode_01',
props = {
{ 0, 0, 0 },
{ 1, 0, 0 },
{ 2, 0, 0 },
{ 3, 4, 1 },
},
components = {
{ 1, 1, 1 },
{ 3, 1, 1 },
{ 4, 36, 1 },
{ 5, 49, 1 },
{ 6, 52, 1 },
{ 7, 9, 1 },
{ 8, 59, 1 },
{ 9, 14, 1 },
{ 10, 1, 1 },
{ 11, 150, 1 },
},
},
Careful not to remove any other brackets or commas