Remove command palette POC (#24044)

* Revert "POC: Cross-team recent search (#20027)"

This reverts commit aa59c28b04, preserving
a few code tidyings unrelated to the original PR.

* Revert "Add feature flag for command palette (#20011)"

This reverts commit c78c5ce3f3.

server/channels/store/retrylayer/retrylayer.go

@@ -7271,27 +7271,6 @@ func (s *RetryLayerPostStore) GetPostsSinceForSync(options model.GetPostsSinceFo
 
 }
 
-func (s *RetryLayerPostStore) GetRecentSearchesForUser(userID string) ([]*model.SearchParams, error) {
-
-	tries := 0
-	for {
-		result, err := s.PostStore.GetRecentSearchesForUser(userID)
-		if err == nil {
-			return result, nil
-		}
-		if !isRepeatableError(err) {
-			return result, err
-		}
-		tries++
-		if tries >= 3 {
-			err = errors.Wrap(err, "giving up after 3 consecutive repeatable transaction failures")
-			return result, err
-		}
-		timepkg.Sleep(100 * timepkg.Millisecond)
-	}
-
-}
-
 func (s *RetryLayerPostStore) GetRepliesForExport(parentID string) ([]*model.ReplyForExport, error) {
 
 	tries := 0
@@ -7382,27 +7361,6 @@ func (s *RetryLayerPostStore) InvalidateLastPostTimeCache(channelID string) {
 
 }
 
-func (s *RetryLayerPostStore) LogRecentSearch(userID string, searchQuery []byte, createAt int64) error {
-
-	tries := 0
-	for {
-		err := s.PostStore.LogRecentSearch(userID, searchQuery, createAt)
-		if err == nil {
-			return nil
-		}
-		if !isRepeatableError(err) {
-			return err
-		}
-		tries++
-		if tries >= 3 {
-			err = errors.Wrap(err, "giving up after 3 consecutive repeatable transaction failures")
-			return err
-		}
-		timepkg.Sleep(100 * timepkg.Millisecond)
-	}
-
-}
-
 func (s *RetryLayerPostStore) Overwrite(post *model.Post) (*model.Post, error) {
 
 	tries := 0