The issue here is that the user wanted to disable a taxonomy term from a view filter.
It is not possible to remove a single term from a filter unless that term has no post assigned to it.
The alternative is that you can use css to hide the term that you don't want to appear in the filter.
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Everyone can read this forum, but only Toolset clients can post in it. Toolset support works 6 days per week, 19 hours per day.