chore: Remove unused type (#6887)

This type was added to try to consolidate events now we're moving in a
different direction and this type is not used.

src/lib/types/events.ts

@@ -1,7 +1,6 @@
-import type { IApiUser } from './api-user';
 import type { FeatureToggle, IStrategyConfig, ITag, IVariant } from './model';
 import type { IApiToken } from './models/api-token';
-import type { IAuditUser, IUser, IUserWithRootRole } from './user';
+import type { IAuditUser, IUserWithRootRole } from './user';
 
 export const APPLICATION_CREATED = 'application-created' as const;
 
@@ -353,17 +352,6 @@ export interface IBaseEvent {
     tags?: ITag[];
 }
 
-export interface IUserEvent {
-    type: IEventType;
-    byUser: IUser | IApiUser;
-    project?: string;
-    environment?: string;
-    featureName?: string;
-    data?: any;
-    preData?: any;
-    tags?: ITag[];
-}
-
 export interface IEvent extends IBaseEvent {
     id: number;
     createdAt: Date;