pre-Ruby 2.0 cruft cleanup

Change-Id: If3965206f27f585a14fe3e59eef98764e26c310d
Reviewed-on: https://gerrit.instructure.com/92723
Reviewed-by: Rob Orton <rob@instructure.com>
Tested-by: Jenkins
Product-Review: Cody Cutrer <cody@instructure.com>
QA-Review: Cody Cutrer <cody@instructure.com>

config/environments/development.rb

@@ -27,7 +27,6 @@ environment_configuration(defined?(config) && config) do |config|
   # The ruby debug gems conflict with the IDE-based debugger gem.
   # Set this option in your dev environment to disable.
   unless ENV['DISABLE_RUBY_DEBUGGING']
-    if RUBY_VERSION >= '2.0.0'
     require 'byebug'
     if ENV['REMOTE_DEBUGGING_ENABLED']
       require 'byebug/core'
@@ -36,9 +35,6 @@ environment_configuration(defined?(config) && config) do |config|
       byebug_port_file = File.join(Dir.tmpdir, 'byebug.port')
       File.write(byebug_port_file, Byebug.actual_port)
     end
-    else
-      require "debugger"
-    end
   end
 
   # Print deprecation notices to the Rails logger

config/initializers/postgresql_adapter.rb

@@ -295,7 +295,6 @@ unless CANVAS_RAILS4_0
     def query_conditions_for_initial_load(type_map)
       known_type_names = type_map.keys.map { |n| "'#{n}'" } + type_map.keys.map { |n| "'_#{n}'" }
       known_type_types = %w('r' 'e' 'd')
-      #debugger
       <<-SQL % [known_type_names.join(", "), known_type_types.join(", ")]
       WHERE
         t.typname IN (%s)

config/initializers/ruby_version_compat.rb

@@ -1,38 +1,3 @@
-# ruby pre-2.0 compatibility fixes
-
-if RUBY_VERSION < '2.0'
-  # see https://bugs.ruby-lang.org/issues/7547
-  # the fix was only applied in 2.0
-  module Dir::Tmpname
-    def create(basename, *rest)
-      if opts = Hash.try_convert(rest[-1])
-        opts = opts.dup if rest.pop.equal?(opts)
-        max_try = opts.delete(:max_try)
-        opts = [opts]
-      else
-        opts = []
-      end
-      tmpdir, = *rest
-      if $SAFE > 0 and tmpdir.tainted?
-        tmpdir = '/tmp'
-      else
-        tmpdir ||= tmpdir()
-      end
-      n = nil
-      begin
-        path = File.join(tmpdir, make_tmpname(basename, n))
-        yield(path, n, *opts)
-      rescue Errno::EEXIST
-        n ||= 0
-        n += 1
-        retry if !max_try or n < max_try
-        raise "cannot generate temporary name using `#{basename}' under `#{tmpdir}'"
-      end
-      path
-    end
-  end
-end
-
 # This makes it so all parameters get converted to UTF-8 before they hit your
 # app.  If someone sends invalid UTF-8 to your server, raise an exception.
 class ActionController::InvalidByteSequenceErrorFromParams < Encoding::InvalidByteSequenceError; end
@@ -71,17 +36,3 @@ end
 module ActiveRecord::Coders
   Utf8SafeYAMLColumn = YAMLColumn
 end
-
-# Fix for https://bugs.ruby-lang.org/issues/7278 , which was filling up our logs with these warnings
-if RUBY_VERSION < "2."
-  require 'net/protocol'
-  class Net::InternetMessageIO
-    def each_crlf_line(src)
-      buffer_filling(@wbuf, src) do
-        while line = @wbuf.slice!(/\A[^\r\n]*(?:\n|\r(?:\n|(?!\z)))/)
-          yield line.chomp("\n") + "\r\n"
-        end
-      end
-    end
-  end
-end

gems/canvas_partman/Gemfile

@@ -3,12 +3,6 @@ source 'https://rubygems.org'
 gem 'simplecov', '0.8.2', :require => false
 gem 'simplecov-rcov', '0.2.3', :require => false
 
-platforms :ruby_19 do
-  gem 'debugger'
-end
-
-platforms :ruby_21, :ruby_22, :ruby_23 do
 gem 'byebug', require: false
-end
 
 gemspec

gems/canvas_partman/spec/spec_helper.rb

@@ -16,11 +16,7 @@ require 'fixtures/zoo'
 require 'fixtures/animal'
 require 'fixtures/trail'
 
-if RUBY_VERSION =~ /^1.9/
-  require 'debugger'
-elsif RUBY_VERSION =~ /^2/
 require 'byebug'
-end
 
 RSpec.configure do |config|
   Zoo = CanvasPartmanTest::Zoo