Remove `Command.globs` method

It is no longer being used.

lib/jekyll/command.rb

@@ -19,21 +19,6 @@ module Jekyll
         super(base)
       end
 
-      # Listing of all directories (globbed to include subfiles and folders)
-      #
-      # source - the source path
-      # destination - the destination path
-      #
-      # Returns an Array of directory globs in the source, excluding the destination
-      def globs(source, destination)
-        Dir.chdir(source) do
-          dirs = Dir['*'].select { |x| File.directory?(x) }
-          dirs -= [destination, File.expand_path(destination), File.basename(destination)]
-          dirs = dirs.map { |x| "#{x}/**/*" }
-          dirs += ['*']
-        end
-      end
-
       # Run Site#process and catch errors
       #
       # site - the Jekyll::Site object

test/test_command.rb

@@ -1,41 +1,6 @@
 require 'helper'
 
 class TestCommand < Test::Unit::TestCase
-  context "when calling .globs" do
-    context "when non-default dest & source dirs" do
-      setup do
-        @source = source_dir
-        @dest   = dest_dir
-        directory_with_contents(@dest)
-        @globs  = Command.globs(@source, @dest)
-      end
-      should "return an array without the destination dir" do
-        assert @globs.is_a?(Array)
-        assert !@globs.include?(@dest)
-      end
-      teardown do
-        clear_dest
-      end
-    end
-    context "when using default dest dir" do
-      setup do
-        @source = test_dir
-        @dest   = test_dir('_site')
-        directory_with_contents(@dest)
-        @globs  = Command.globs(@source, @dest)
-      end
-      should "return an array without the destination dir" do
-        assert @globs.is_a?(Array)
-        assert !@globs.include?(@dest)
-        @globs.each do |glob|
-           assert !glob.include?(File.basename(@dest))
-        end
-      end
-      teardown do
-        FileUtils.rm_r(@dest)
-      end
-    end
-  end
   context "when calling .add_build_options" do
     should "add common options" do
       cmd = Object.new