Remove old relations (#11993)

This is a first PR to remove old relation logic

Next steps:
- remove relationMetadata from cache
- remove relationMetadata table content and structure
- refactor relationDefinition to leverage field.settings instead

packages/twenty-server/src/engine/metadata-modules/object-metadata/object-metadata.module.ts

@@ -10,7 +10,6 @@ import { NestjsQueryTypeOrmModule } from '@ptc-org/nestjs-query-typeorm';
 
 import { TypeORMModule } from 'src/database/typeorm/typeorm.module';
 import { FeatureFlag } from 'src/engine/core-modules/feature-flag/feature-flag.entity';
-import { FeatureFlagModule } from 'src/engine/core-modules/feature-flag/feature-flag.module';
 import { SettingsPermissionsGuard } from 'src/engine/guards/settings-permissions.guard';
 import { WorkspaceAuthGuard } from 'src/engine/guards/workspace-auth.guard';
 import { DataSourceModule } from 'src/engine/metadata-modules/data-source/data-source.module';
@@ -22,7 +21,6 @@ import { ObjectMetadataResolver } from 'src/engine/metadata-modules/object-metad
 import { ObjectMetadataFieldRelationService } from 'src/engine/metadata-modules/object-metadata/services/object-metadata-field-relation.service';
 import { ObjectMetadataMigrationService } from 'src/engine/metadata-modules/object-metadata/services/object-metadata-migration.service';
 import { ObjectMetadataRelatedRecordsService } from 'src/engine/metadata-modules/object-metadata/services/object-metadata-related-records.service';
-import { ObjectMetadataRelationService } from 'src/engine/metadata-modules/object-metadata/services/object-metadata-relation.service';
 import { SettingPermissionType } from 'src/engine/metadata-modules/permissions/constants/setting-permission-type.constants';
 import { PermissionsModule } from 'src/engine/metadata-modules/permissions/permissions.module';
 import { PermissionsGraphqlApiExceptionFilter } from 'src/engine/metadata-modules/permissions/utils/permissions-graphql-api-exception.filter';
@@ -58,14 +56,12 @@ import { UpdateObjectPayload } from './dtos/update-object.input';
         RemoteTableRelationsModule,
         SearchVectorModule,
         IndexMetadataModule,
-        FeatureFlagModule,
         PermissionsModule,
         WorkspacePermissionsCacheModule,
       ],
       services: [
         ObjectMetadataService,
         ObjectMetadataMigrationService,
-        ObjectMetadataRelationService,
         ObjectMetadataFieldRelationService,
         ObjectMetadataRelatedRecordsService,
       ],