Removing warning message

Summary

Removing a warning popup associated with WISH_CONTINUE_SAVE_WARNINGS_MSG while creating a contact

Content

Hi,
In our environment, if we save a contact with an email address that already exists in the database, then a warning pop-up is shown, asking if we want to continue saving the contact with duplicate email address. 
We want to remove that warning message because we already have customized messages following that. From what I gathered is we can change the text of the warning message by editing WISH_CONTINUE_SAVE_WARNINGS_MSG message base, but is there any way to remove that pop-up completely?