diff --git a/cc/private/rules_impl/cc_flags_supplier.bzl b/cc/private/rules_impl/cc_flags_supplier.bzl
index afd73e0..474c7ce 100644
--- a/cc/private/rules_impl/cc_flags_supplier.bzl
+++ b/cc/private/rules_impl/cc_flags_supplier.bzl
@@ -30,6 +30,6 @@ cc_flags_supplier = rule(
     attrs = {
         "_cc_toolchain": attr.label(default = Label("@bazel_tools//tools/cpp:current_cc_toolchain")),
     },
-    toolchains = use_cpp_toolchain(),  # copybara-use-repo-external-label
+    toolchains = use_cpp_toolchain(),
     fragments = ["cpp"],
 )
diff --git a/examples/my_c_archive/my_c_archive.bzl b/examples/my_c_archive/my_c_archive.bzl
index 4ab2dd5..314564f 100644
--- a/examples/my_c_archive/my_c_archive.bzl
+++ b/examples/my_c_archive/my_c_archive.bzl
@@ -95,5 +95,5 @@ my_c_archive = rule(
         "_cc_toolchain": attr.label(default = Label("@bazel_tools//tools/cpp:current_cc_toolchain")),
     },
     fragments = ["cpp"],
-    toolchains = use_cpp_toolchain(),  # copybara-use-repo-external-label
+    toolchains = use_cpp_toolchain(),
 )
diff --git a/examples/my_c_compile/my_c_compile.bzl b/examples/my_c_compile/my_c_compile.bzl
index d78fe09..d232f91 100644
--- a/examples/my_c_compile/my_c_compile.bzl
+++ b/examples/my_c_compile/my_c_compile.bzl
@@ -76,6 +76,6 @@ my_c_compile = rule(
         "src": attr.label(mandatory = True, allow_single_file = True),
         "_cc_toolchain": attr.label(default = Label("@bazel_tools//tools/cpp:current_cc_toolchain")),
     },
-    toolchains = use_cpp_toolchain(),  # copybara-use-repo-external-label
+    toolchains = use_cpp_toolchain(),
     fragments = ["cpp"],
 )
diff --git a/examples/write_cc_toolchain_cpu/write_cc_toolchain_cpu.bzl b/examples/write_cc_toolchain_cpu/write_cc_toolchain_cpu.bzl
index 90100ba..3e93b42 100644
--- a/examples/write_cc_toolchain_cpu/write_cc_toolchain_cpu.bzl
+++ b/examples/write_cc_toolchain_cpu/write_cc_toolchain_cpu.bzl
@@ -28,5 +28,5 @@ write_cc_toolchain_cpu = rule(
     attrs = {
         "_cc_toolchain": attr.label(default = Label("@bazel_tools//tools/cpp:current_cc_toolchain")),
     },
-    toolchains = use_cpp_toolchain(),  # copybara-use-repo-external-label
+    toolchains = use_cpp_toolchain(),
 )