roll: third_party/pigweed pw_chrono: Remove spammy print statements

When this script is executed via a Bazel genrule, its standard output is
printed to the terminal. Remove the spam by deleting these print
statements

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/238618
Presubmit-Verified: CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>
Original-Revision: 79ef29541132f5f2812b6ea766583f828f22a7b6

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: 4eff319c3ab77b..79ef29541132f5
Roller-URL: https://ci.chromium.org/b/8735159099491530897
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I63ef3b416dc46235ff1a00f76438e9a12ab26fc1
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/239552
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
diff --git a/third_party/pigweed b/third_party/pigweed
index 4eff319..79ef295 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 4eff319c3ab77b6996c3bd86d559100be2bc115c
+Subproject commit 79ef29541132f5f2812b6ea766583f828f22a7b6