[roll third_party/pigweed] bazel: Remove license comments

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/54720

third_party/pigweed Rolled-Commits: 6bdcc3fe3380eda..d1a11983ec8a21f
Roller-URL: https://ci.chromium.org/b/8840618980246343568
Cq-Cl-Tag: roller-builder:pigweed-experimental-roller
Cq-Cl-Tag: roller-bid:8840618980246343568
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I42183a374ad5d3a8f5441d934f60f863b83dfc83
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/54623
Reviewed-by: Pigweed Integration Roller <pigweed-integration-roller@pigweed.google.com.iam.gserviceaccount.com>
Commit-Queue: Pigweed Integration Roller <pigweed-integration-roller@pigweed.google.com.iam.gserviceaccount.com>
diff --git a/third_party/pigweed b/third_party/pigweed
index 6bdcc3f..d1a1198 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 6bdcc3fe3380eda25fecb427108a983b86020867
+Subproject commit d1a11983ec8a21f7a6d8f1910a1fec6e8c33a31e