remove some legacy functions that are now in upstream

lib/puppet/parser/functions/sha1.rb

@@ -1,9 +0,0 @@
-# return the sha1 hash
-require 'digest/sha1'
-
-module Puppet::Parser::Functions
-	newfunction(:sha1, :type => :rvalue) do |args|
-		Digest::SHA1.hexdigest(args[0])
-	end
-end
-

lib/puppet/parser/functions/split.rb

@@ -1,17 +0,0 @@
-# split($string, $delimiter) : $string
-# split($string[], $delimiter) : $string[][]
-#
-# Split the first argument(s) on every $delimiter. $delimiter is interpreted as
-# Ruby regular expression.
-#
-# For long-term portability it is recommended to refrain from using Ruby's
-# extended RE features.
-module Puppet::Parser::Functions
-	newfunction(:split, :type => :rvalue) do |args|
-		if args[0].is_a?(Array)
-			args.collect do |a| a.split(/#{args[1]}/) end
-		else
-			args[0].split(/#{args[1]}/)
-		end
-	end
-end