Revert "activity types and verbs for pages"

This reverts commit 8399ef54829b5e3b2e666e7d3a85572cff38db32.
Revert "Add attempt duration tracking to golf"

This reverts commit 28e4c85d413d6075c9a6d2a138891daed2487e62.
Revert "Launch page uses registration"

This reverts commit ad5cdc7c6e0d08a21250f836d5cce2996f81679c.