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/app/file.go

@@ -1363,7 +1363,7 @@ func populateZipfile(w *zip.Writer, fileDatas []model.FileData) error {
 	return nil
 }
 
-func (a *App) SearchFilesInTeamForUser(c *request.Context, terms string, userId string, teamId string, isOrSearch bool, includeDeletedChannels bool, timeZoneOffset int, page, perPage int, modifier string) (*model.FileInfoList, *model.AppError) {
+func (a *App) SearchFilesInTeamForUser(c *request.Context, terms string, userId string, teamId string, isOrSearch bool, includeDeletedChannels bool, timeZoneOffset int, page, perPage int) (*model.FileInfoList, *model.AppError) {
 	paramsList := model.ParseSearchParams(strings.TrimSpace(terms), timeZoneOffset)
 	includeDeleted := includeDeletedChannels && *a.Config().TeamSettings.ExperimentalViewArchivedChannels
 
@@ -1374,7 +1374,6 @@ func (a *App) SearchFilesInTeamForUser(c *request.Context, terms string, userId
 	finalParamsList := []*model.SearchParams{}
 
 	for _, params := range paramsList {
-		params.Modifier = modifier
 		params.OrTerms = isOrSearch
 		params.IncludeDeletedChannels = includeDeleted
 		// Don't allow users to search for "*"