Remove hardcoded suffix from the Webbrowser tool input

[yodnoralov]

The webbrowser tool is hardcoding the following suffix to the input that you can pass:
from the above text, also provide up to 5 markdown links from within that would be of interest (always including URL and text). Links should be provided, if present, in markdown syntax as a list under the heading "Relevant Links:

What is the easiest way of removing those suffix? Is there a recommended approach short of rewriting the whole class? Everything about the class is good -- only this suffix needs to be removed.