Revert code moving deleted messages to main timeline (#3858)
* Revert "Move the redaction event to main at the same time we move redacted"
This reverts commit 378a776815f63fdd1e4d507af35046c0ba88153c.
Context: https://github.com/vector-im/element-web/issues/26498
* Revert "Don't remove thread info from a thread root when it is redacted"
This reverts commit 17b61a69c20677e39e4f3b1b4ed5903421eaee6b.
Context: https://github.com/vector-im/element-web/issues/26498
* Revert "Move all related messages into main timeline on redaction"
This reverts commit d8fc1795f1319b6a77175c5c584ae03be53c457c.
Context: https://github.com/vector-im/element-web/issues/26498
* Revert "Factor out the code for moving an event to the main timeline"
This reverts commit 942dfcb84b8aef6ea84a419d73e845d3611bd91c.
Context: https://github.com/vector-im/element-web/issues/26498
* Revert "Factor out utils in redaction tests"
This reverts commit 43a0dc56e130f75ef695b52cd23945e10393119a.
Context: https://github.com/vector-im/element-web/issues/26498
* Revert "Move redaction event tests into their own describe block"
This reverts commit 9b0ea80f93fe944da03c27df26064cae1765c94d.
Context: https://github.com/vector-im/element-web/issues/26498
* Revert "Move redacted messages out of any thread, into main timeline."
This reverts commit b94d137398d600ad208450732b6f12aed177221b.
Context: https://github.com/vector-im/element-web/issues/26498