autotools common_utility_handling always checking if it should setup doxygen

[jhonasiv]

Autotools should only check for doxygen related functionality inside with_docs, instead of doing it everytime common_utilitiy_handling is called.

autobuild/lib/autobuild/packages/autotools.rb

Line 64 in c5cd1aa

def common_utility_handling(utility, target)

[doudou]

It's actually totally broken. It's documentation-specific while it be a common helper.