Cleanup gradle init script used in ci (elastic#119015)

.ci/init.gradle

@@ -1,95 +1,3 @@
-import com.bettercloud.vault.VaultConfig
-import com.bettercloud.vault.Vault
-
-initscript {
-  repositories {
-    mavenCentral()
-  }
-  dependencies {
-    classpath 'com.bettercloud:vault-java-driver:4.1.0'
-  }
-}
-
-boolean USE_ARTIFACTORY = false
-
-if (System.getenv('VAULT_ADDR') == null) {
-  // When trying to reproduce errors outside of CI, it can be useful to allow this to just return rather than blowing up
-  if (System.getenv('CI') == null) {
-    return
-  }
-
-  throw new GradleException("You must set the VAULT_ADDR environment variable to use this init script.")
-}
-
-if (System.getenv('VAULT_ROLE_ID') == null && System.getenv('VAULT_SECRET_ID') == null && System.getenv('VAULT_TOKEN') == null) {
-    // When trying to reproduce errors outside of CI, it can be useful to allow this to just return rather than blowing up
-  if (System.getenv('CI') == null) {
-    return
-  }
-
-  throw new GradleException("You must set either the VAULT_ROLE_ID and VAULT_SECRET_ID environment variables, " +
-    "or the VAULT_TOKEN environment variable to use this init script.")
-}
-
-final String vaultPathPrefix = System.getenv('VAULT_ADDR') ==~ /.+vault-ci.+\.dev.*/ ? "secret/ci/elastic-elasticsearch/migrated" : "secret/elasticsearch-ci"
-
-final String vaultToken = System.getenv('VAULT_TOKEN') ?: new Vault(
-  new VaultConfig()
-    .address(System.env.VAULT_ADDR)
-    .engineVersion(1)
-    .build()
-)
-  .withRetries(5, 1000)
-  .auth()
-  .loginByAppRole("approle", System.env.VAULT_ROLE_ID, System.env.VAULT_SECRET_ID)
-  .getAuthClientToken()
-
-final Vault vault = new Vault(
-  new VaultConfig()
-    .address(System.env.VAULT_ADDR)
-    .engineVersion(1)
-    .token(vaultToken)
-    .build()
-)
-  .withRetries(5, 1000)
-
-
-if (USE_ARTIFACTORY) {
-  final Map<String, String> artifactoryCredentials = vault.logical()
-    .read("${vaultPathPrefix}/artifactory.elstc.co")
-    .getData()
-  logger.info("Using elastic artifactory repos")
-  Closure configCache = {
-    return {
-      name "artifactory-gradle-release"
-      url "https://artifactory.elstc.co/artifactory/gradle-release"
-      credentials {
-        username artifactoryCredentials.get("username")
-        password artifactoryCredentials.get("token")
-      }
-    }
-  }
-  settingsEvaluated { settings ->
-    settings.pluginManagement {
-      repositories {
-        maven configCache()
-      }
-    }
-  }
-  projectsLoaded {
-    allprojects {
-      buildscript {
-        repositories {
-          maven configCache()
-        }
-      }
-      repositories {
-        maven configCache()
-      }
-    }
-  }
-}
-
 gradle.settingsEvaluated { settings ->
   settings.pluginManager.withPlugin("com.gradle.develocity") {
     settings.develocity {
@@ -98,14 +6,10 @@ gradle.settingsEvaluated { settings ->
   }
 }
 
-
 final String buildCacheUrl = System.getProperty('org.elasticsearch.build.cache.url')
 final boolean buildCachePush = Boolean.valueOf(System.getProperty('org.elasticsearch.build.cache.push', 'false'))
 
 if (buildCacheUrl) {
-  final Map<String, String> buildCacheCredentials = System.getenv("GRADLE_BUILD_CACHE_USERNAME") ? [:] : vault.logical()
-    .read("${vaultPathPrefix}/gradle-build-cache")
-    .getData()
   gradle.settingsEvaluated { settings ->
     settings.buildCache {
       local {
@@ -116,11 +20,10 @@ if (buildCacheUrl) {
         url = buildCacheUrl
         push = buildCachePush
         credentials {
-          username = System.getenv("GRADLE_BUILD_CACHE_USERNAME") ?: buildCacheCredentials.get("username")
-          password = System.getenv("GRADLE_BUILD_CACHE_PASSWORD") ?: buildCacheCredentials.get("password")
+          username = System.getenv("GRADLE_BUILD_CACHE_USERNAME")
+          password = System.getenv("GRADLE_BUILD_CACHE_PASSWORD")
         }
       }
     }
   }
 }
-