Revert "[ruby/rdoc] Update test libraries from ruby/ruby 2023-04-29"

This reverts commit 966f0d91e2a86fa1347cdafbe1af47e7350aa4ca.

1 files changed, 0 insertions, 17 deletions

diff --git a/rakelib/sync_tool.rake b/rakelib/sync_tool.rake
deleted file mode 100644
index 8ea8cb0ad2..0000000000
--- a/rakelib/sync_tool.rake
+++ /dev/null
@@ -1,17 +0,0 @@
-task :sync_tool, [:from] do |t, from: nil|
-  from ||= (File.identical?(__dir__, "rakelib") ? "../ruby/tool" : File.dirname(__dir__))
-
-  require 'fileutils'
-
-  {
-    "rakelib/sync_tool.rake" => "rakelib",
-    "lib/core_assertions.rb" => "test/lib",
-    "lib/envutil.rb" => "test/lib",
-    "lib/find_executable.rb" => "test/lib",
-    "lib/helper.rb" => "test/lib",
-  }.each do |src, dest|
-    FileUtils.mkpath(dest)
-    FileUtils.cp "#{from}/#{src}", dest
-  rescue Errno::ENOENT
-  end
-end