delete unnecessary lines from gemspec

Author: kenichiice

test-unit-runner-junitxml.gemspec

@@ -9,17 +9,12 @@ Gem::Specification.new do |spec|
   spec.email         = ["[email protected]"]
 
   spec.summary       = %q{A test-unit runner that reports test result in JUnit XML format.}
-  #spec.description   = %q{TODO: Write a longer description or delete this line.}
   spec.homepage      = "https://github.com/test-unit/test-unit-runner-junitxml"
   spec.license       = "MIT"
 
-  # Specify which files should be added to the gem when it is released.
-  # The `git ls-files -z` loads the files in the RubyGem that have been added into git.
   spec.files         = Dir.chdir(File.expand_path('..', __FILE__)) do
     `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^(test|spec|features)/}) }
   end
-  #spec.bindir        = "exe"
-  #spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ["lib"]
 
   spec.add_development_dependency "bundler"