Replace libchrome size() with C++ standard ones

This change is for partially replacing <base/stl_util.h>'s base::size()
with std::size() in the C++ standard.
Also remove #include <base/stl_util.h>.

Test: build
Bug: 360917504
Change-Id: I09dbec56cda00c00f195875395461676bd55287a
diff --git a/payload_consumer/postinstall_runner_action.cc b/payload_consumer/postinstall_runner_action.cc
index 4de75aa..aaa8a43 100644
--- a/payload_consumer/postinstall_runner_action.cc
+++ b/payload_consumer/postinstall_runner_action.cc
@@ -30,7 +30,6 @@
 #include <base/files/file_path.h>
 #include <base/files/file_util.h>
 #include <base/logging.h>
-#include <base/stl_util.h>
 #include <base/strings/string_split.h>
 #include <base/strings/string_util.h>
 
@@ -327,7 +326,7 @@
     bytes_read = 0;
     bool eof;
     bool ok =
-        utils::ReadAll(progress_fd_, buf, base::size(buf), &bytes_read, &eof);
+        utils::ReadAll(progress_fd_, buf, std::size(buf), &bytes_read, &eof);
     progress_buffer_.append(buf, bytes_read);
     // Process every line.
     vector<string> lines = base::SplitString(