cleanup TODO file

TODO

@@ -13,13 +13,11 @@ DOC:
 
 WIP:
 * any: assert-if-dynamic like tag to the constructor
-* no gh-pages, use main/docs or similar, see settings/pages on gh
 * get rid of observers, storage based views made them pointless - document alternatives
 * add storage getter for filters to views and groups
 * exploit the tombstone mechanism to allow enabling/disabling entities (see bump, compact and clear for further details)
 * basic_storage::bind for cross-registry setups (see and remove todo from entity_copy.cpp)
 * process scheduler: reviews, use free lists internally
-* iterator based try_emplace vs try_insert for perf reasons
 * dedicated entity storage, in-place O(1) release/destroy for non-orphaned entities, out-of-sync model
 * entity-only and exclude-only views (both solved with entity storage and storage<void>)
 * custom allocators all over (registry, ...)