Remove test for content changes

This is failing every build on master and it fails pretty much every
pull request. I'm happy to create Change entries before release and this
is making my day way longer than it has to be.

dist.ini

@@ -80,10 +80,6 @@ xt_mode = 1
 ; [Test::NoTabs] ; TODO
 ; [Test::EOL] ; TODO
 [MetaTests]
-[Test::ChangesHasContent]
-[Substitute]
-file = xt/release/changes_has_content.t
-code = s{^(note 'Checking Changes')}{if \(\(\$ENV\{TRAVIS_PULL_REQUEST\} \|\| '') eq 'false'\) \{\n    chomp\(my \$branch_name = \(\$ENV\{TRAVIS_BRANCH\} || \`git rev-parse --abbrev-ref HEAD\`\)\);\n    \$TODO = 'Changes need not have content for this release yet if this is only the master branch'\n    if \(\$branch_name \|\| ''\) eq 'master';\n\}\n\n$1}
 [Test::MinimumVersion]
 [PodSyntaxTests]