doc: remove Gitlab compatibility chapter

README.md

@@ -66,7 +66,3 @@ Comments added to GitLab will appear as owned by the user associated to the GitL
 The simplest and recommended way to configure other SonarQube [analysis arguments](https://docs.sonarqube.org/latest/analysis/analysis-parameters/)
 (and even [language specific args](https://docs.sonarqube.org/latest/analysis/languages/overview/)) is to use a
 `sonar-project.properties` file at the root of your repository.
-
-## Gitlab compatibility
-
-:information_source: This template is actually tested and validated on GitLab Community Edition instance version 13.12.11