[third_party/pigweed] Roll 3 commits

e8c65f4cc0c1568 pw_allocator: Remove total_bytes metric
a5038affded6fea docs: Add breadcrumbs
97f12d317d2ef3d Revert "roll: clang"

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: 5165b9c17a9933b..e8c65f4cc0c1568
Roller-URL: https://ci.chromium.org/b/8755313872934545425
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Ia9b09047f3c1552f146dfa09fabe779dc3cbf5d7
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/kudzu/+/193603
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
diff --git a/third_party/pigweed b/third_party/pigweed
index 5165b9c..e8c65f4 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 5165b9c17a9933b8d0714ef701421bf065d5d66a
+Subproject commit e8c65f4cc0c1568b45fa42439f8bddb50ca327c9