Simplify Buck rules

Change-Id: I24ff93be22029ee5fe8cebb0ff0cefff5cdd9e08
diff --git a/BUCK b/BUCK
index 43b51f9..329a066 100644
--- a/BUCK
+++ b/BUCK
@@ -1,12 +1,5 @@
 include_defs('//bucklets/gerrit_plugin.bucklet')
 
-if STANDALONE_MODE:
-  GSON = '//lib/gson:gson'
-  LOG4J = '//lib/log:log4j'
-else:
-  GSON = '//plugins/delete-project/lib/gson:gson'
-  LOG4J = '//plugins/delete-project/lib/log:log4j'
-
 gerrit_plugin(
   name = 'delete-project',
   srcs = glob(['src/main/java/**/*.java']),
@@ -18,8 +11,8 @@
     'Gerrit-SshModule: com.googlesource.gerrit.plugins.deleteproject.SshModule',
   ],
   provided_deps = [
-    LOG4J,
-    GSON,
+    '//lib:gson',
+    '//lib/log:log4j',
   ],
 )
 
diff --git a/lib/gson/BUCK b/lib/BUCK
similarity index 100%
rename from lib/gson/BUCK
rename to lib/BUCK
diff --git a/lib/log/BUCK b/lib/log/BUCK
index 17e606b..1ae0c8e 100644
--- a/lib/log/BUCK
+++ b/lib/log/BUCK
@@ -1,13 +1,6 @@
 include_defs('//bucklets/maven_jar.bucklet')
 
 maven_jar(
-  name = 'jcl-over-slf4j',
-  id = 'org.slf4j:jcl-over-slf4j:1.7.7',
-  sha1 = '56003dcd0a31deea6391b9e2ef2f2dc90b205a92',
-  license = 'slf4j',
-)
-
-maven_jar(
   name = 'log4j',
   id = 'log4j:log4j:1.2.17',
   sha1 = '5af35056b4d257e4b64b9e8069c0746e8b08629f',