Remove unused plugin - we use dependabot

Author: trask

settings.gradle.kts

@@ -2,7 +2,6 @@ import org.apache.tools.ant.taskdefs.condition.Os
 
 pluginManagement {
   plugins {
-    id("com.github.ben-manes.versions") version "0.52.0"
     id("com.github.jk1.dependency-license-report") version "2.9"
     id("me.champeau.jmh") version "0.7.3"
     id("com.gradle.plugin-publish") version "1.3.1"