Delete an unneeded include of pathutils.h.

TBR: phoglund@webrtc.org
Bug: webrtc:6424
Change-Id: Idc70ecf9093786307cccec624f1edf11542afa6b
Reviewed-on: https://webrtc-review.googlesource.com/83724
Reviewed-by: Niels Moller <nisse@webrtc.org>
Commit-Queue: Niels Moller <nisse@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#23626}
diff --git a/test/testsupport/fileutils_unittest.cc b/test/testsupport/fileutils_unittest.cc
index 4c0be26..7f85135 100644
--- a/test/testsupport/fileutils_unittest.cc
+++ b/test/testsupport/fileutils_unittest.cc
@@ -19,7 +19,6 @@
 
 #include "api/optional.h"
 #include "rtc_base/checks.h"
-#include "rtc_base/pathutils.h"
 #include "test/gtest.h"
 
 #ifdef WIN32