BuddyPress.org

#1 – build a child theme of bp-default,
– copy over https://buddypress.trac.wordpress.org/browser/tags/1.5.3.1/bp-themes/bp-default/activity/entry.php following the directory structure i.e. childthemefolder/activity/entry.php
– open up entry.php and delete lines 64 – 78 and Save file.

#2 – renaming labels – https://codex.buddypress.org/extending-buddypress/customizing-labels-messages-and-urls/