Remove is branch enabled feature flag (#14357)

As title

packages/twenty-server/src/engine/core-modules/feature-flag/constants/public-feature-flag.const.ts

@@ -22,14 +22,6 @@ export const PUBLIC_FEATURE_FLAGS: PublicFeatureFlag[] = [
         'https://twenty.com/images/lab/is-imap-smtp-caldav-enabled.png',
     },
   },
-  {
-    key: FeatureFlagKey.IS_WORKFLOW_BRANCH_ENABLED,
-    metadata: {
-      label: 'Workflow Branches',
-      description: 'Create multiple branches on your workflows',
-      imagePath: 'https://twenty.com/images/lab/is-workflow-branch-enabled.png',
-    },
-  },
   {
     key: FeatureFlagKey.IS_MESSAGE_FOLDER_CONTROL_ENABLED,
     metadata: {

packages/twenty-server/src/engine/core-modules/feature-flag/enums/feature-flag-key.enum.ts

@@ -7,7 +7,6 @@ export enum FeatureFlagKey {
   IS_AI_ENABLED = 'IS_AI_ENABLED',
   IS_IMAP_SMTP_CALDAV_ENABLED = 'IS_IMAP_SMTP_CALDAV_ENABLED',
   IS_MORPH_RELATION_ENABLED = 'IS_MORPH_RELATION_ENABLED',
-  IS_WORKFLOW_BRANCH_ENABLED = 'IS_WORKFLOW_BRANCH_ENABLED',
   IS_RELATION_CONNECT_ENABLED = 'IS_RELATION_CONNECT_ENABLED',
   IS_CORE_VIEW_SYNCING_ENABLED = 'IS_CORE_VIEW_SYNCING_ENABLED',
   IS_CORE_VIEW_ENABLED = 'IS_CORE_VIEW_ENABLED',

packages/twenty-server/src/engine/twenty-orm/entity-manager/workspace-entity-manager.spec.ts

@@ -130,7 +130,6 @@ describe('WorkspaceEntityManager', () => {
         IS_AI_ENABLED: false,
         IS_IMAP_SMTP_CALDAV_ENABLED: false,
         IS_MORPH_RELATION_ENABLED: false,
-        IS_WORKFLOW_BRANCH_ENABLED: false,
         IS_RELATION_CONNECT_ENABLED: false,
         IS_CORE_VIEW_SYNCING_ENABLED: false,
         IS_CORE_VIEW_ENABLED: false,
@@ -158,7 +157,6 @@ describe('WorkspaceEntityManager', () => {
         IS_AI_ENABLED: false,
         IS_IMAP_SMTP_CALDAV_ENABLED: false,
         IS_MORPH_RELATION_ENABLED: false,
-        IS_WORKFLOW_BRANCH_ENABLED: false,
         IS_RELATION_CONNECT_ENABLED: false,
         IS_CORE_VIEW_SYNCING_ENABLED: false,
         IS_CORE_VIEW_ENABLED: false,

packages/twenty-server/src/engine/workspace-manager/dev-seeder/core/utils/seed-feature-flags.util.ts

@@ -40,11 +40,6 @@ export const seedFeatureFlags = async (
         workspaceId: workspaceId,
         value: true,
       },
-      {
-        key: FeatureFlagKey.IS_WORKFLOW_BRANCH_ENABLED,
-        workspaceId: workspaceId,
-        value: false,
-      },
       {
         key: FeatureFlagKey.IS_IMAP_SMTP_CALDAV_ENABLED,
         workspaceId: workspaceId,