Merge bitcoin/bitcoin#31099: doc: drop macOS LLVM install instructions

79aa828 doc: drop LLVM install instructions (fanquake)

Pull request description:

  Followup from #31048.

ACKs for top commit:
  maflcko:
    lgtm ACK 79aa828
  hebasto:
    ACK 79aa828.

Tree-SHA512: 9404845cc9a17f85363ce893addadaaba839b4a37e1e3e64ad4a50eb237ffb78636970480ff2f486ff5bd1b3dba9b85bf3d6654a680b11c6832d17daf6dd6c0a

doc/build-osx.md

@@ -1,15 +1,15 @@
 # macOS Build Guide
 
-**Updated for MacOS [14](https://www.apple.com/macos/sonoma/)**
+**Updated for MacOS [15](https://www.apple.com/macos/macos-sequoia/)**
 
-This guide describes how to build bitcoind, command-line utilities, and GUI on macOS
+This guide describes how to build bitcoind, command-line utilities, and GUI on macOS.
 
 ## Preparation
 
 The commands in this guide should be executed in a Terminal application.
 macOS comes with a built-in Terminal located in:
 
-```
+```bash
 /Applications/Utilities/Terminal.app
 ```
 
@@ -51,18 +51,6 @@ To install, run the following from your terminal:
 brew install cmake boost pkg-config libevent
 ```
 
-``` bash
-brew install llvm
-```
-
-And append the following to the configure commands below:
-
-``` bash
--DCMAKE_C_COMPILER="$(brew --prefix llvm)/bin/clang" -DCMAKE_CXX_COMPILER="$(brew --prefix llvm)/bin/clang++"
-```
-
-Try `llvm@17` if compilation fails with the default version of llvm.
-
 ### 4. Clone Bitcoin repository
 
 `git` should already be installed by default on your system.