Bug: Register Server Events, Package Events do not accept an entry

This code should not expect an entry:
```typescript
declare function RegisterServerEvent(
this: void,
entry: number,
event: ServerEvents.SERVER_EVENT_ON_PACKET_RECEIVE,
func: HookFunctionNoSelf,
shots?: number,
): (...args: any[]) => any;
declare function RegisterServerEvent(
this: void,
entry: number,
event: ServerEvents.SERVER_EVENT_ON_PACKET_SEND,
func: HookFunctionNoSelf,
shots?: number,
): (...args: any[]) => any;
```

Locate the TypeScript declarations for RegisterServerEvent and Package Events, using the signatures shown in the issue as the search terms. Check the related event overloads for consistency, then verify that the affected declarations no longer require an entry argument.

Written by the indexing model from the issue text.