build, wallet, doc: Remove BDB

doc/build-osx.md

@@ -74,14 +74,6 @@ It is not necessary to build wallet functionality to run `bitcoind` or  `bitcoin
 macOS ships with a useable `sqlite` package, meaning you don't need to
 install anything.
 
-###### Legacy Wallet Support
-
-`berkeley-db@4` is only required to support for legacy wallets.
-Skip if you don't intend to use legacy wallets.
-
-``` bash
-brew install berkeley-db@4
-```
 ---
 
 #### GUI Dependencies
@@ -160,14 +152,6 @@ It is required that you have `python` and `zip` installed.
 
 There are many ways to configure Bitcoin Core, here are a few common examples:
 
-##### Wallet (BDB + SQlite) Support, No GUI:
-
-If `berkeley-db@4` or `sqlite` are not installed, this will throw an error.
-
-``` bash
-cmake -B build -DWITH_BDB=ON
-```
-
 ##### Wallet (only SQlite) and GUI Support:
 
 This enables the GUI.