diff --git a/ch03.asciidoc b/ch03.asciidoc
index 26236741..eec4f0a2 100644
--- a/ch03.asciidoc
+++ b/ch03.asciidoc
@@ -26,18 +26,6 @@ implemented. Bitcoin Core implements all aspects of bitcoin, including
 wallets, a transaction and block validation engine, and all modern parts
 of Bitcoin peer-to-peer communication.
 
-[WARNING]
-====
-((("wallets", "best practices for")))((("bitcoin improvement proposals",
-"Mnemonic Code Words (BIP-39)")))((("bitcoin improvement proposals",
-"Hierarchical Deterministic Wallets (BIP-32/BIP-44)")))Even though
-Bitcoin Core includes a reference implementation of a wallet, this is
-not intended to be used as a production wallet for users or for
-applications. Application developers are advised to build wallets using
-modern standards such as BIP-39 and BIP-32 (see <<mnemonic_code_words>>
-and <<hd_wallets>>). BIP stands for _Bitcoin Improvement Proposal_.
-====
-
 <<bitcoin_core_architecture>> shows the architecture of Bitcoin
 Core.((("Bitcoin Core", "architecture")))