revert the custom role changes

Author: harshitha-cstk

packages/contentstack-import/src/import/modules/custom-roles.ts

@@ -15,7 +15,6 @@ export default class ImportCustomRoles extends BaseClass {
   private customRolesUidMapperPath: string;
   private envUidMapperFolderPath: string;
   private entriesUidMapperFolderPath: string;
-  private assetsUidMapperFolderPath: string;
   private createdCustomRolesPath: string;
   private customRolesFailsPath: string;
   private customRolesConfig: CustomRoleConfig;
@@ -27,8 +26,6 @@ export default class ImportCustomRoles extends BaseClass {
   private environmentsUidMap: Record<string, unknown>;
   private entriesUidMap: Record<string, unknown>;
   private localesUidMap: Record<string, unknown>;
-  private assetsUidMap: Record<string, unknown>;
-  private assetsFolderUidMap: Record<string, unknown>;
   public targetLocalesMap: Record<string, unknown>;
   public sourceLocalesMap: Record<string, unknown>;
 
@@ -64,8 +61,6 @@ export default class ImportCustomRoles extends BaseClass {
     this.environmentsUidMap = {};
     this.entriesUidMap = {};
     this.localesUidMap = {};
-    this.assetsUidMap = {};
-    this.assetsFolderUidMap = {};
   }
 
   /**