[MM-52926] Deprecating work templates (#23466)

Co-authored-by: Mattermost Build <build@mattermost.com>

server/channels/api4/api.go

@@ -140,8 +140,6 @@ type Routes struct {
 
 	Usage *mux.Router // 'api/v4/usage'
 
-	WorkTemplates *mux.Router // 'api/v4/worktemplates'
-
 	HostedCustomer *mux.Router // 'api/v4/hosted_customer'
 
 	Drafts *mux.Router // 'api/v4/drafts'
@@ -271,8 +269,6 @@ func Init(srv *app.Server) (*API, error) {
 
 	api.BaseRoutes.Usage = api.BaseRoutes.APIRoot.PathPrefix("/usage").Subrouter()
 
-	api.BaseRoutes.WorkTemplates = api.BaseRoutes.APIRoot.PathPrefix("/worktemplates").Subrouter()
-
 	api.BaseRoutes.HostedCustomer = api.BaseRoutes.APIRoot.PathPrefix("/hosted_customer").Subrouter()
 
 	api.BaseRoutes.Drafts = api.BaseRoutes.APIRoot.PathPrefix("/drafts").Subrouter()
@@ -320,7 +316,6 @@ func Init(srv *app.Server) (*API, error) {
 	api.InitExport()
 	api.InitInsights()
 	api.InitUsage()
-	api.InitWorkTemplate()
 	api.InitHostedCustomer()
 	api.InitDrafts()
 	if err := api.InitGraphQL(); err != nil {