Remove the public_deps to fileutils from test_support.

Bug: webrtc:8946
Change-Id: Ia01d8bb1b42485e29f26792b9266228743d7fd90
No-Presubmit: true
Reviewed-on: https://webrtc-review.googlesource.com/62100
Commit-Queue: Artem Titov <titovartem@webrtc.org>
Reviewed-by: Artem Titov <titovartem@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#22465}
diff --git a/logging/BUILD.gn b/logging/BUILD.gn
index d5d7e55..7b83c37 100644
--- a/logging/BUILD.gn
+++ b/logging/BUILD.gn
@@ -316,6 +316,7 @@
         "../rtc_base:checks",
         "../rtc_base:rtc_base_approved",
         "../rtc_base:rtc_base_tests_utils",
+        "../test:fileutils",
         "../test:test_support",
         "//testing/gtest",
       ]