[DX-2346], resolved es lint errors

Author: naman-contentstack

packages/contentstack-config/src/utils/interactive.ts

@@ -1,4 +1,3 @@
-import { isEmpty } from 'lodash';
 import { cliux, messageHandler } from '@contentstack/cli-utilities';
 
 export const askRegions = async (): Promise<string> => {

packages/contentstack-config/src/utils/rate-limit-handler.ts

@@ -32,7 +32,7 @@ export class RateLimitHandler {
       const features = organizations.plan?.features || [];
 
       const limitsToUpdate: { [key: string]: Limit } = { ...rateLimit[config.org] };
-      let utilizationMap = {};
+      const utilizationMap = {};
       limitNames.forEach((name, index) => {
         if (utilizeValues[index] !== undefined) {
           utilizationMap[name] = utilizeValues[index];

packages/contentstack-config/src/utils/region-handler.ts

@@ -99,7 +99,7 @@ class UserConfig {
    * @returns {object} region object with cma, cda, region property
    */
   setRegion(region) {
-    let selectedRegion = regions[region];
+    const selectedRegion = regions[region];
     if (selectedRegion) {
       configHandler.set('region', selectedRegion);
       return selectedRegion;
@@ -169,8 +169,7 @@ class UserConfig {
    * @returns { object } JSON object with only valid keys for region
    */
   sanitizeRegionObject(regionObject) {
-    let sanitizedRegion;
-    sanitizedRegion = {
+    const sanitizedRegion = {
       cma: regionObject.cma,
       cda: regionObject.cda,
       uiHost: regionObject.uiHost,