In CreateFolder, delete code to recursively create parent directories.

webrtc/rtc_base/win32filesystem.cc

Index: webrtc/rtc_base/win32filesystem.cc
diff --git a/webrtc/rtc_base/win32filesystem.cc b/webrtc/rtc_base/win32filesystem.cc
index 45441855e9a1db1c722ee9ccfdca15fae516460f..879e86cf47ccfc5a935a75591fc3ea9be48dc8b8 100644
--- a/webrtc/rtc_base/win32filesystem.cc
+++ b/webrtc/rtc_base/win32filesystem.cc
@@ -51,15 +51,6 @@ bool Win32Filesystem::CreateFolder(const Pathname &pathname) {
     return false;
   }
 
-  // Directory doesn't exist, look up one directory level
-  if (!pathname.parent_folder().empty()) {
-    Pathname parent(pathname);
-    parent.SetFolder(pathname.parent_folder());
-    if (!CreateFolder(parent)) {
-      return false;
-    }
-  }
-
   return (::CreateDirectory(path16.c_str(), nullptr) != 0);
 }