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/post.go

@@ -1580,7 +1580,7 @@ func (a *App) SearchPostsInTeam(teamID string, paramsList []*model.SearchParams)
 	})
 }
 
-func (a *App) SearchPostsForUser(c *request.Context, terms string, userID string, teamID string, isOrSearch bool, includeDeletedChannels bool, timeZoneOffset int, page, perPage int, modifier string) (*model.PostSearchResults, *model.AppError) {
+func (a *App) SearchPostsForUser(c *request.Context, terms string, userID string, teamID string, isOrSearch bool, includeDeletedChannels bool, timeZoneOffset int, page, perPage int) (*model.PostSearchResults, *model.AppError) {
 	var postSearchResults *model.PostSearchResults
 	paramsList := model.ParseSearchParams(strings.TrimSpace(terms), timeZoneOffset)
 	includeDeleted := includeDeletedChannels && *a.Config().TeamSettings.ExperimentalViewArchivedChannels
@@ -1592,7 +1592,6 @@ func (a *App) SearchPostsForUser(c *request.Context, terms string, userID string
 	finalParamsList := []*model.SearchParams{}
 
 	for _, params := range paramsList {
-		params.Modifier = modifier
 		params.OrTerms = isOrSearch
 		params.IncludeDeletedChannels = includeDeleted
 		// Don't allow users to search for "*"
@@ -1635,15 +1634,6 @@ func (a *App) SearchPostsForUser(c *request.Context, terms string, userID string
 	return postSearchResults, nil
 }
 
-func (a *App) GetRecentSearchesForUser(userID string) ([]*model.SearchParams, *model.AppError) {
-	searchParams, err := a.Srv().Store().Post().GetRecentSearchesForUser(userID)
-	if err != nil {
-		return nil, model.NewAppError("GetRecentSearchesForUser", "app.recent_searches.app_error", nil, "", http.StatusInternalServerError).Wrap(err)
-	}
-
-	return searchParams, nil
-}
-
 func (a *App) GetFileInfosForPostWithMigration(postID string, includeDeleted bool) ([]*model.FileInfo, *model.AppError) {
 
 	pchan := make(chan store.StoreResult, 1)