roll: third_party/pigweed: pw_bluetooth_sapphire: Remove CommandPacket definitions

Remove CommandHandler and CommandPacket definitions, which are
currently not being used.

Original-Bug: http://b/42167863
Test: fx test //src/connectivity/bluetooth/core/bt-host
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1095832
GitOrigin-RevId: d745ed090c9edc544084d261fbf44408202d3bc1
Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/230537

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: e830f7dc8049c8e..b0b9007d6792dae
Roller-URL: https://ci.chromium.org/b/8738782100857895857
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I891cd4ddc4a9265187d2547a4f6442de26bf09d0
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/examples/+/231756
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
diff --git a/third_party/pigweed b/third_party/pigweed
index e830f7d..b0b9007 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit e830f7dc8049c8ea92e21abf193057cdc367f355
+Subproject commit b0b9007d6792dae4b53fee11dd1c0bf899f4fcfa