fix a few things

Author: alex-connolly

README.md

@@ -18,8 +18,6 @@ Immutable Contracts is a library of smart contracts targeted at developers who w
 
 - Smart Contract Wallets
 
-- Random Number Generation
-
 These contracts are feature-rich and are the recommended standard on Immutable zkEVM intended for all users and partners within the ecosystem.
 
 ## Setup

contracts/multicall/GuardedMulticaller.sol

@@ -25,31 +25,4 @@ The architecture of the GuardedMulticaller system is shown below.
 
 ![GuardedMulticaller Architecture](../../audits/multicall/202309-threat-model-multicaller/architecture.png)
 
----
----
-# GuardedMulticaller [DEPRECATED]
-
-The GuardedMulticaller contract provides functionality to call multiple functions across different target contracts, the function signatures are validated to ensure they are permitted. Currently one of the use cases we have is in the Primary Sales flow, the GuardedMulticaller executes `transferFrom()` and `safeMint()` functions on different target contracts in a single transaction. 
-
-### Features
-
-- Signature validation: Only approved signers can authorise the `execute` on the multicall contract.
-- Function Permits: Security to prevent execution of unauthorised targets and functions.
-- Expiry: Ability to set an expiry for the multicall.
-- References: Map multicall executions to a reference string to be used by the application.
-
-# Status
-
-Contract audits and threat models:
-
-| Description               | Date             |Version Audited  | Link to Report |
-|---------------------------|------------------|-----------------|----------------|
-| Threat Model              | Sept 26, 2023     | --- | [202309-threat-model-multicaller](../../audits/multicall/202309-threat-model-multicaller.md) |
-| External audit            | Sept 26, 2023     | [e59b72a](https://github.com/immutable/contracts/blob/e59b72a69294bd6d5857a1e2d019044bbfb14632/contracts/multicall) | [202309-external-audit-multicaller](../../audits/multicall/202309-external-audit-multicaller.pdf) |
-
-
-# Architecture
-
-The architecture of the GuardedMulticaller system is shown below. 
-
-![GuardedMulticaller Architecture](../../audits/multicall/202309-threat-model-multicaller/architecture.png)
+> **Note:** GuardedMulticaller v1 has been removed. Only GuardedMulticaller2 is supported.