diff --git a/x-pack/legacy/plugins/lens/index.ts b/x-pack/legacy/plugins/lens/index.ts
index 968c1a906f40a4..3637bb7547e82f 100644
--- a/x-pack/legacy/plugins/lens/index.ts
+++ b/x-pack/legacy/plugins/lens/index.ts
@@ -8,7 +8,6 @@ import * as Joi from 'joi';
 import { resolve } from 'path';
 import { LegacyPluginInitializer } from 'src/legacy/types';
 import KbnServer, { Server } from 'src/legacy/server/kbn_server';
-import { CoreStart } from 'kibana/server';
 import mappings from './mappings.json';
 import { PLUGIN_ID, getEditPath, NOT_INTERNATIONALIZED_PRODUCT_NAME } from './common';
 import { lensServerPlugin } from './server';
@@ -19,7 +18,7 @@ export const lens: LegacyPluginInitializer = kibana => {
     id: PLUGIN_ID,
     configPrefix: `xpack.${PLUGIN_ID}`,
     // task_manager could be required, but is only used for telemetry
-    require: ['kibana', 'elasticsearch', 'xpack_main', 'interpreter', 'data'],
+    require: ['kibana', 'elasticsearch', 'xpack_main', 'interpreter', 'data', 'task_manager'],
     publicDir: resolve(__dirname, 'public'),
 
     uiExports: {
@@ -69,7 +68,7 @@ export const lens: LegacyPluginInitializer = kibana => {
         taskManager: getTaskManagerSetup(server)!,
       });
 
-      plugin.start((kbnServer.newPlatform.start.core as unknown) as CoreStart, {
+      plugin.start(kbnServer.newPlatform.start.core, {
         server,
         taskManager: getTaskManagerStart(server)!,
       });
diff --git a/x-pack/legacy/plugins/maps/server/test_utils/index.js b/x-pack/legacy/plugins/maps/server/test_utils/index.js
index 2c59082ac114c9..f208917e209244 100644
--- a/x-pack/legacy/plugins/maps/server/test_utils/index.js
+++ b/x-pack/legacy/plugins/maps/server/test_utils/index.js
@@ -25,30 +25,3 @@ export const getMockCallWithInternal = (hits = defaultMockSavedObjects) => {
 export const getMockTaskFetch = (docs = defaultMockTaskDocs) => {
   return () => Promise.resolve({ docs });
 };
-
-export const getMockKbnServer = (
-  mockCallWithInternal = getMockCallWithInternal(),
-  mockTaskFetch = getMockTaskFetch()
-) => ({
-  plugins: {
-    elasticsearch: {
-      getCluster: () => ({
-        callWithInternalUser: mockCallWithInternal,
-      }),
-    },
-    xpack_main: {},
-  },
-  newPlatform: {
-    start: {
-      plugins: {
-        taskManager: {
-          registerTaskDefinitions: () => undefined,
-          schedule: () => Promise.resolve(),
-          fetch: mockTaskFetch,
-        },
-      },
-    },
-  },
-  config: () => ({ get: () => '' }),
-  log: () => undefined,
-});