Revert PR#47 "Add #to_ary to Diff::LCS::Change…"

This reverts commits 01e0cae and 3b4d2be because they introduce fatally
breaking changes in the tests that were hidden by broken CI.

* 01e0cae: Add #to_ary to Diff::LCS::Change and Diff::LCS::ContextChange
  [Akinori MUSHA]
* 3b4d2be: Mention in rdoc that Diff::LCS::ContextChange can be converted to an
  array [Akinori MUSHA]

2 files changed, 0 insertions, 18 deletions

diff --git a/lib/diff/lcs.rb b/lib/diff/lcs.rb
index 8fb4314..34ddf0f 100644
--- a/lib/diff/lcs.rb
+++ b/lib/diff/lcs.rb
@@ -181,20 +181,6 @@ class << Diff::LCS
   # Class argument is provided for +callbacks+, #diff will attempt to
   # initialise it. If the +callbacks+ object (possibly initialised) responds
   # to #finish, it will be called.
-  #
-  # Each element of a returned array is a Diff::LCS::ContextChange object,
-  # which can be implicitly converted to an array.
-  #
-  #   Diff::LCS.sdiff(a, b).each do |action, (old_pos, old_element), (new_pos, new_element)|
-  #     case action
-  #     when '!'
-  #       # replace
-  #     when '-'
-  #       # delete
-  #     when '+'
-  #       # insert
-  #     end
-  #   end
   def sdiff(seq1, seq2, callbacks = nil, &block) #:yields diff changes:
     diff_traversal(:sdiff, seq1, seq2, callbacks || Diff::LCS::SDiffCallbacks,
                    &block)
diff --git a/lib/diff/lcs/change.rb b/lib/diff/lcs/change.rb
index 8dae83b..9229069 100644
--- a/lib/diff/lcs/change.rb
+++ b/lib/diff/lcs/change.rb
@@ -41,8 +41,6 @@ class Diff::LCS::Change
     [ @action, @position, @element ]
   end
 
-  alias to_ary to_a
-
   def self.from_a(arr)
     arr = arr.flatten(1)
     case arr.size
@@ -134,8 +132,6 @@ class Diff::LCS::ContextChange < Diff::LCS::Change
     ]
   end
 
-  alias to_ary to_a
-
   def inspect(*args)
     to_a.inspect
   end