Remove version-fix.js

The playbook no longer brings in versions that were broken.

antora-playbook.yml

@@ -2,7 +2,6 @@ antora:
   extensions:
   - '@springio/antora-extensions/partial-build-extension'
   - ./lib/antora/extensions/inject-collector-config.js
-  - ./lib/antora/extensions/version-fix.js
   - require: '@springio/antora-extensions/latest-version-extension'
   - require: '@springio/antora-extensions/inject-collector-cache-config-extension'
   - '@antora/collector-extension'

lib/antora/extensions/version-fix.js

@@ -1,36 +0,0 @@
-'use strict'
-
-/**
- * The purpose of this extension is to fix invalid metadata saved to either antora.yml or gradle.properties in certain
- * tags. This invalid metadata prevents Antora from classifying the component versions properly.
- *
- * This extension addresses with the following cases:
- * 
- * . the boolean value on the prerelease key is incorrectly quoted
- * . the prerelease tag is set to true for a GA version
- * . the value of the name key is empty
- * . the value of the displayVersion key doesn't match the actual version
- * . the -SNAPSHOT suffix is appended to the value of the version key instead of the value of the prerelease key
- *
- * This extension should be listed directly after @antora/collector-extension.
- */
-module.exports.register = function () {
-  this.once('contentAggregated', ({ contentAggregate }) => {
-    contentAggregate.forEach((componentVersionBucket) => {
-      if (componentVersionBucket.prerelease === 'true') componentVersionBucket.prerelease = true
-      if (!componentVersionBucket.name && componentVersionBucket.displayVersion === 5.6) {
-        componentVersionBucket.name = 'ROOT'
-        componentVersionBucket.version = '5.6.0-RC1'
-        delete componentVersionBucket.displayVersion
-        componentVersionBucket.prerelease = true
-      }
-      else if (componentVersionBucket.version === '5.6.1') {
-        delete componentVersionBucket.prerelease
-      }
-      else if (typeof componentVersionBucket.prerelease === 'string' && componentVersionBucket.prerelease !== '-SNAPSHOT') {
-        componentVersionBucket.version += componentVersionBucket.prerelease
-        componentVersionBucket.prerelease = true
-      }
-    })
-  })
-}