diff --git a/antora-playbook.yml b/antora-playbook.yml
index acfa60eb6d..cd9fa5c9e4 100644
--- a/antora-playbook.yml
+++ b/antora-playbook.yml
@@ -1,7 +1,6 @@
 antora:
   extensions:
   - '@springio/antora-extensions/partial-build-extension'
-  - ./lib/antora/extensions/inject-collector-config.js
   - require: '@springio/antora-extensions/latest-version-extension'
   - require: '@springio/antora-extensions/inject-collector-cache-config-extension'
   - '@antora/collector-extension'
diff --git a/lib/antora/extensions/inject-collector-config.js b/lib/antora/extensions/inject-collector-config.js
deleted file mode 100644
index 1b939254ca..0000000000
--- a/lib/antora/extensions/inject-collector-config.js
+++ /dev/null
@@ -1,41 +0,0 @@
-'use strict'
-
-const BASE_COMMAND = 'gradlew -PbuildSrc.skipTests=true -Porg.gradle.java.installations.auto-detect=false --scan --stacktrace'
-const JVM_ARGS='-Xmx3g -XX:+HeapDumpOnOutOfMemoryError'
-const REPO_URL = 'https://github.com/spring-projects/spring-security'
-const TASK_NAME=':spring-security-docs:generateAntora'
-
-/**
- * Set of tags that contain a collector config, but the antora command fails on GitHub Actions.
- */
-const VERSIONS_TO_OVERRIDE = [
-  '6.0.0-RC1'
-]
-
-/**
- * The purpose of this extension is to inject the Antora Collector configuration into the parsed component version
- * descriptor in tags created before Antora Collector was introduced. Antora Collector runs a command to generate a
- * replacement antora.yml that a) sets the version from the value of the version property in gradle.properties and b)
- * populates AsciiDoc attributes with information from the Gradle build, such as software versions and resource URLs.
- */
-module.exports.register = function () {
-  this.once('contentAggregated', ({ contentAggregate }) => {
-    for (const { origins } of contentAggregate) {
-      for (const origin of origins) {
-        if (origin.url !== REPO_URL) {
-          continue
-        }
-        // Ignore tags with their own collector config unless the antora command fails on GitHub Actions
-        if (!(origin.descriptor.ext?.collector === undefined || VERSIONS_TO_OVERRIDE.includes(origin.tag))) {
-          continue
-        }
-        origin.descriptor.ext = {
-          collector: {
-            run: { command: `${BASE_COMMAND} "-Dorg.gradle.jvmargs=${JVM_ARGS}" ${TASK_NAME}`, local: true },
-            scan: { dir: './build/generateAntora' },
-          }
-        }
-      }
-    }
-  })
-}