See StackOverflow questions and answers:
There is one more way to remove view selector menu from your view/form
Please refer following steps :
GoTO your view page
Append "?toolpaneview=2" and hit the url (this will open your page in edit mode) or go to settings and click on edit page.
Edit Web Part
tik/check "Disable view selector menu" and "disable Save this view button"
- Apply and OK