The above links seem dead for me. Anyone looking for this awesome tweak can find it here:
http://sebsauvage.net/paste/?64b07623b1a7da21#1lTBJ7BRMSDxWYGeauBTA3K9GJHY4RWdSq4GNapq6iY=
Copy and paste the text into a text editor and save as "Clearer.ini" and store in the "OpenRCT2" directory where "config.ini" is located