[rubygems/rubygems] Remove explicit `psych` activation

We don't need to explictly activate `psych` since `require` will take
care of that automatically.

We don't need to care about a minimum version either since the oldest
ruby we support at the moment ships with a `psych` version higher than
2.0.0.

https://github.com/rubygems/rubygems/commit/1ccf0912a1

1 files changed, 0 insertions, 7 deletions

diff --git a/lib/rubygems.rb b/lib/rubygems.rb
index dbb32b220f..ef744c40ba 100644
--- a/lib/rubygems.rb
+++ b/lib/rubygems.rb
@@ -618,13 +618,6 @@ An Array (#{env.inspect}) was passed in from #{caller[3]}
     return unless defined?(gem)
 
     begin
-      gem 'psych', '>= 2.0.0'
-    rescue Gem::LoadError
-      # It's OK if the user does not have the psych gem installed.  We will
-      # attempt to require the stdlib version
-    end
-
-    begin
       # Try requiring the gem version *or* stdlib version of psych.
       require 'psych'
     rescue ::LoadError