Removed two useless XML lexer benchmarks.

benchmark/xml/lexer/cdata_bench.rb

@@ -1,20 +0,0 @@
-require_relative '../../benchmark_helper'
-
-string = 'Hello, how are you doing today?'
-small  = "<![CDATA[#{string}]]>"
-medium = "<![CDATA[#{string * 1_000}]]>"
-large  = "<![CDATA[#{string * 10_000}]]>"
-
-Benchmark.ips do |bench|
-  bench.report 'CDATA with a small body' do
-    Oga::XML::Lexer.new(small).lex
-  end
-
-  bench.report 'CDATA with a medium body' do
-    Oga::XML::Lexer.new(medium).lex
-  end
-
-  bench.report 'CDATA with a large body' do
-    Oga::XML::Lexer.new(large).lex
-  end
-end

benchmark/xml/lexer/element_bench.rb

@@ -1,19 +0,0 @@
-require_relative '../../benchmark_helper'
-
-simple     = '<p>Hello world</p>'
-attributes = '<p class="foo">Hello world</p>'
-nested     = '<p>Hello<strong>world</strong></p>'
-
-Benchmark.ips do |bench|
-  bench.report 'text only' do
-    Oga::XML::Lexer.new(simple).lex
-  end
-
-  bench.report 'text + attributes' do
-    Oga::XML::Lexer.new(attributes).lex
-  end
-
-  bench.report 'text + children' do
-    Oga::XML::Lexer.new(nested).lex
-  end
-end