Hello,
You can use my code to paste into custom css section in Traveler Setting:
.create-room form#st_form_add_partner .tabs_partner ul li:nth-child(6),
.edit-room form#st_form_add_partner .tabs_partner ul li:nth-child(6),
.create-tours form#st_form_add_partner .tabs_partner ul li:nth-child(5),
.edit-tours form#st_form_add_partner .tabs_partner ul li:nth-child(5),
.create-activity form#st_form_add_partner .tabs_partner ul li:nth-child(5),
.edit-activity form#st_form_add_partner .tabs_partner ul li:nth-child(5),
.create-cars form#st_form_add_partner .tabs_partner ul li:nth-child(6),
.edit-cars form#st_form_add_partner .tabs_partner ul li:nth-child(6),
.create-rental form#st_form_add_partner .tabs_partner ul li:nth-child(6),
.edit-rental form#st_form_add_partner .tabs_partner ul li:nth-child(6){
display: none;
}
Please try and check again.
Thank you.