How can I remove salutation from Accounts -> Contact subpanel -> quick create ?
I don’t have that field there in my 7.10.7.
Maybe you added it yourself? If so, you should find some reference to it under “custom” folder…
Wait - what are you calling “salutation”? Could it be the “title”? Mr, Mrs, etc.?
This recent thread might help you get started, you can learn the names of the files and of the fields (searchdefs) that create this form:
https://suitecrm.com/suitecrm/forum/developer-help/19994-filter-in-subpanel-suitecrm-7-10