Please help us help you and fill where relevant:
Your LimeSurvey version: 3.28.x
Own server or LimeSurvey hosting: On Premise
Survey theme/template: BootStrap
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I was reading beforeSurveyAdminView event, but it's undocumented
Maybe doesn't exists anymore? It's listed inside Global Events .

Nowadays I'm using 3.x-LTS version and patching Question Model , by removing the unwanted types.
Inside master branch (5.x), I can see you have QuestionType Model , so I bet You can simply remove a Constant variable.

I'm doing an hardcoded dirty trick. So I ask: is it possible to alter Question Model by Plugin?
Or maybe I can simply remove by javascript/css some types from Question Type form during Question creation?