Remove finished TODOs

doc/src/09000-todos.md

@@ -73,22 +73,6 @@ Now the modules that are not yet started:
 - [ ] imag-write - Command to read the store from stdin and write it to the
   filesystem store (usefull for piping/chaining commands)
 
-## Libraries
-
-- [x] Rewrite libimagerror to be based on `chain-error` crate. This basically
-  removes our error infrastructure, though existing traits and convenience
-  functionality should be kept (for example the `MapErrInto` or the `IntoError`
-  traits), as much as possible). If the switch to `chain-error` would require
-  too much code to be rewritten, reconsider.
-- [x] Ensure all libraries are implemented as extension traits rather than
-  wrapping store types
-- [x] Rewrite logger to allow config/env-var based module white/blacklisting and
-  writing log to file
-
-## User Interface
-
-- [ ] Ensure store ids are always passed as positional arguments
-
 ## Project structure and development
 
 - [ ] Move away from github