[llvm] [BOLT][NFC] Clean up the outdated options --write-dwp in doc (PR #166150)

[Jinjie Huang via llvm-commits]

https://github.com/Jinjie-Huang created https://github.com/llvm/llvm-project/pull/166150

Since the "--write-dwp" option have been removed in this [pr](https://github.com/llvm/llvm-project/pull/100771), this patch also cleans up the corresponding documentation.

>From 55617a8729112849c9b12a140f6fb7414dfb1119 Mon Sep 17 00:00:00 2001
From: huangjinjie <huangjinjie at bytedance.com>
Date: Mon, 3 Nov 2025 19:02:22 +0800
Subject: [PATCH] clean up --write-dwp in docs

---
 bolt/docs/CommandLineArgumentReference.md | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/bolt/docs/CommandLineArgumentReference.md b/bolt/docs/CommandLineArgumentReference.md
index d65cf39e16b29..636db823a2da2 100644
--- a/bolt/docs/CommandLineArgumentReference.md
+++ b/bolt/docs/CommandLineArgumentReference.md
@@ -381,11 +381,6 @@
 
   Set verbosity level for diagnostic output
 
-- `--write-dwp`
-
-  Output a single dwarf package file (dwp) instead of multiple non-relocatable
-  dwarf object files (dwo).
-
 ### BOLT optimization options:
 
 - `--align-blocks`