Remove buck build

Change-Id: I17a9d880065f8baf2bba60087d7c58f6a50effb6
diff --git a/BUCK b/BUCK
deleted file mode 100644
index 714abaf..0000000
--- a/BUCK
+++ /dev/null
@@ -1,11 +0,0 @@
-gerrit_plugin(
-  name = 'avatars-external',
-  srcs = glob(['src/main/java/**/*.java']),
-  resources = glob(['src/main/resources/**/*']),
-  manifest_entries = [
-    'Gerrit-PluginName: avatars-external',
-    'Implementation-Title: External Avatar plugin',
-    'Implementation-URL: https://gerrit-review.googlesource.com/#/admin/projects/plugins/avatars-external',
-    'Gerrit-AvatarProvider: com.googlesource.gerrit.plugins.avatars.external.ExternalUrlAvatarProvider',
-  ],
-)