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

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

webapp/platform/client/src/client4.ts

@@ -140,8 +140,6 @@ import {CompleteOnboardingRequest} from '@mattermost/types/setup';
 import {UserThreadList, UserThread, UserThreadWithPost} from '@mattermost/types/threads';
 import {LeastActiveChannelsResponse, TopChannelResponse, TopReactionResponse, TopThreadResponse, TopDMsResponse} from '@mattermost/types/insights';
 
-import {Category, ExecuteWorkTemplateRequest, ExecuteWorkTemplateResponse, WorkTemplate} from '@mattermost/types/work_templates';
-
 import {cleanUrlForLogging} from './errors';
 import {buildQueryString} from './helpers';
 import {TelemetryHandler} from './telemetry';
@@ -341,31 +339,6 @@ export default class Client4 {
         return `${this.getBaseRoute()}/commands`;
     }
 
-    getBaseWorkTemplate() {
-        return `${this.getBaseRoute()}/worktemplates`;
-    }
-
-    getWorkTemplateCategories = () => {
-        return this.doFetch<Category[]>(
-            `${this.getBaseWorkTemplate()}/categories`,
-            {method: 'get'},
-        );
-    }
-
-    getWorkTemplates = (categoryId: string) => {
-        return this.doFetch<WorkTemplate[]>(
-            `${this.getBaseWorkTemplate()}/categories/${categoryId}/templates`,
-            {method: 'get'},
-        );
-    }
-
-    executeWorkTemplate = (req: ExecuteWorkTemplateRequest) => {
-        return this.doFetch<ExecuteWorkTemplateResponse>(
-            `${this.getBaseWorkTemplate()}/execute`,
-            {method: 'post', body: JSON.stringify(req)},
-        );
-    }
-
     getFilesRoute() {
         return `${this.getBaseRoute()}/files`;
     }