Rakefile: remove outdated sync tasks

I use ruby.git's tool/sync_default_gems.rb and simple git cherry-pick
instead nowadays.

These tasks actually don't correctly work because they use outdated
path references and expect ruby.git to be using git-svn, which is not
the case anymore.

Reported-by: rkoster <[email protected]>
Fixes: #495

Author: rhenium

Rakefile

@@ -26,38 +26,4 @@ task :debug do
   ruby "-I./lib -ropenssl -ve'puts OpenSSL::OPENSSL_VERSION, OpenSSL::OPENSSL_LIBRARY_VERSION'"
 end
 
-namespace :sync do
-  task :from_ruby do
-    sh "./tool/sync-with-trunk"
-  end
-
-  task :to_ruby do
-    trunk_path = ENV.fetch("RUBY_TRUNK_PATH", "../ruby")
-
-    rsync = "rsync -av --delete"
-    excludes = %w{Makefile extconf.h mkmf.log depend *.o *.so *.bundle}
-    excludes.each { |name| rsync << " --exclude #{name}" }
-
-    paths = [
-      ["ext/openssl/", "ext/openssl/"],
-      ["lib/", "ext/openssl/lib/"],
-      ["sample/", "sample/openssl/"],
-      ["test/fixtures/", "test/openssl/fixtures/"],
-      ["test/utils.rb", "test/openssl/"],
-      ["test/ut_eof.rb", "test/openssl/"],
-      ["test/test_*", "test/openssl/"],
-      ["History.md", "ext/openssl/"],
-    ]
-    paths.each do |src, dst|
-      sh "#{rsync} #{src} #{trunk_path}/#{dst}"
-    end
-
-    gemspec_file = File.expand_path("../openssl.gemspec", __FILE__)
-    gemspec = eval(File.read(gemspec_file), binding, gemspec_file)
-    File.write("#{trunk_path}/ext/openssl/openssl.gemspec", gemspec.to_ruby)
-
-    puts "Don't forget to update ext/openssl/depend"
-  end
-end
-
 task :default => :test