Avoid some redefinition warnings

Sometimes `rake` will load the default version of `bundler` and then the
`Rakefile` will change the LOAD_PATH and require the same code again
using the version of `bundler` in `lib`.

The only `bundler` code that gets used by the `Rakefile` is
`bundler/gem_tasks`. This is used, for example, for releasing. I think
it's fine to use an installed version of `bundler` for this in any
case.,

1 files changed, 0 insertions, 1 deletions

diff --git a/Rakefile b/Rakefile
index eb37dffd9a..841563bc79 100644
--- a/Rakefile
+++ b/Rakefile
@@ -1,6 +1,5 @@
 # frozen_string_literal: true
 
-$:.unshift File.expand_path("../lib", __FILE__)
 require "benchmark"
 
 require_relative "spec/support/rubygems_ext"