Remove Liquid::BlockBody patch (#12313)

lib/liquid/block_body.rb

@@ -1,15 +0,0 @@
-# Disables {% liquid %} tag introduced in version 5.0
-# see <https://github.com/Shopify/liquid/blob/master/lib/liquid/block_body.rb>
-
-module LiquidBlockBodyExtensions
-  # parse_for_liquid_tag is a private method, thus we use prepend to patch it
-  def parse_for_liquid_tag(_tokenizer, _parse_context)
-    raise StandardError, "Liquid 'liquid' tag is disabled"
-  end
-end
-
-module Liquid
-  class BlockBody
-    prepend LiquidBlockBodyExtensions
-  end
-end

spec/lib/liquid/liquid_spec.rb

@@ -1,7 +0,0 @@
-require "rails_helper"
-
-RSpec.describe Liquid, type: :lib do
-  it "is disabled" do
-    expect { Liquid::Template.parse("{% liquid %}") }.to raise_error(StandardError)
-  end
-end