doc: drop text about project lead

Author: fanquake

CONTRIBUTING.md

@@ -18,7 +18,7 @@ Anyone may participate in the review process. All comments and ACK/NACKs will be
 
 The purpose of the website is to be an official mouthpiece for the Bitcoin Core project as well as be a resource for technical information that has a direct impact on Bitcoin Core software. This can include research, presentations, and developer blogs. 
 
-Where proposed content is about Bitcoin Core project policy, there should rough consensus of the Bitcoin Core project maintainers as a minimum bar and final decision is with the Bitcoin Core project lead.
+Where proposed content is about Bitcoin Core project policy, there should be rough consensus among the Bitcoin Core project maintainers.
 
 ## Translation Process