refactor(treewide): get rid of compile time build environment introspection

It's cursed and not very useful. Still a few uses of ctor left, but oh well.

docs/reference/admin/debug.md

@@ -118,10 +118,6 @@ Print detailed tokio runtime metrics accumulated since last command invocation
 
 Print the current time
 
-## `!admin debug list-dependencies`
-
-List dependencies
-
 ## `!admin debug database-stats`
 
 Get database statistics