chore: remove grails-doc gradle plugin

Author: jdaugherty

RENAME.md

@@ -170,7 +170,6 @@ Below is a reference of all migrated artifacts - both their old and new name.
 | GRADLE                            |                                                 |                                                 |                                                               |                        |                        |                        |
 | org.grails                        | grails-gradle-plugin                            | org.apache.grails                               | grails-gradle-plugins                                         |                        |                        | grails-gradle-plugin   |
 | org.grails.grails-core            | org.grails.grails-core.gradle.plugin            | org.apache.grails.gradle.grails-app             | org.apache.grails.gradle.grails-app.gradle.plugin             | grails                 | grails-app             | grails-gradle-plugin   |
-| org.grails.grails-doc             | org.grails.grails-doc.gradle.plugin             | org.apache.grails.gradle.grails-docs            | org.apache.grails.gradle.grails-docs.gradle.plugin            | grails-doc             | grails-docs            | grails-gradle-plugin   |
 | org.grails.grails-gsp             | org.grails.grails-gsp.gradle.plugin             | org.apache.grails.gradle.grails-gsp             | org.apache.grails.gradle.grails-gsp.gradle.plugin             | grails-gsp             | grails-gsp             | grails-gradle-plugin   |
 | org.grails.grails-plugin          | org.grails.grails-plugin.gradle.plugin          | org.apache.grails.gradle.grails-plugin          | org.apache.grails.gradle.grails-plugin.gradle.plugin          | grails-plugin          | grails-plugin          | grails-gradle-plugin   |
 | org.grails.grails-profile         | org.grails.grails-profile.gradle.plugin         | org.apache.grails.gradle.grails-profile         | org.apache.grails.gradle.grails-profile.gradle.plugin         | grails-profile         | grails-profile         | grails-gradle-plugin   |

grails-doc/src/en/guide/upgrading/upgrading60x.adoc

@@ -146,6 +146,10 @@ The `distributionUrl` in the file should now point to the specified Gradle versi
 distributionUrl=https\://services.gradle.org/distributions/gradle-8.14-bin.zip
 ----
 
+===== 6.4. Removed Gradle Plugins
+
+The `grails-doc` plugin has been removed. If you wish to continue to generate the guide documentation, you can use the PublishGuideTask offered by `grails-docs-core`.
+
 ==== 7. Reproducible Builds:
 
 The ASF strongly encourages https://reproducible-builds.org/[reproducible builds] as part of it's security requirements.

grails-doc/src/en/ref/Command Line/docs.adoc

@@ -57,8 +57,5 @@ project(':grails-gradle-model').projectDir = file('model')
 include 'grails-docs-core'
 project(':grails-docs-core').projectDir = file('docs-core')
 
-include 'grails-docs-plugin'
-project(':grails-docs-plugin').projectDir = file('docs-plugin')
-
 include 'grails-gradle-tasks'
 project(':grails-gradle-tasks').projectDir = file('tasks')