Tidy up dependencies

Remove gson and commons-lang. These are provided by the plugin API,
so it's not necessary to explicitly depend on them.

Move the commons-io and commons-codec definitions to the root BUCK
file.

Change-Id: I5df79e8c1468ef566b06059d6f40e772e2ca74b2

BUCK

diff --git a/BUCK b/BUCK
index f2901e3..6c1c5bd 100644
--- a/BUCK
+++ b/BUCK
@@ -14,14 +14,10 @@
   ],
   deps = [
     ':amqp-client',
+    ':commons-codec',
     ':commons-io',
     ':guice-multibindings',
   ],
-  provided_deps = [
-    '//lib:gson',
-    '//lib/commons:codec',
-    '//lib/commons:lang',
-  ],
 )
 
 java_library(
@@ -30,12 +26,11 @@
 )
 
 maven_jar(
-  name = 'amqp-client',
-  id = 'com.rabbitmq:amqp-client:3.5.2',
-  sha1 = '8d10edd29e08f78349bd1da9d18f81c9f8b90567',
-  license = 'MPL1.1',
-  exclude_java_sources = True,
-  visibility = [],
+  name = 'commons-codec',
+  id = 'commons-codec:commons-codec:1.4',
+  sha1 = '4216af16d38465bbab0f3dff8efa14204f7a399a',
+  license = 'Apache2.0',
+  exclude = ['META-INF/LICENSE.txt', 'META-INF/NOTICE.txt'],
 )
 
 maven_jar(
@@ -46,6 +41,15 @@
 )
 
 maven_jar(
+  name = 'amqp-client',
+  id = 'com.rabbitmq:amqp-client:3.5.2',
+  sha1 = '8d10edd29e08f78349bd1da9d18f81c9f8b90567',
+  license = 'MPL1.1',
+  exclude_java_sources = True,
+  visibility = [],
+)
+
+maven_jar(
   name = 'guice-multibindings',
   id = 'com.google.inject.extensions:guice-multibindings:4.0',
   sha1 = 'f4509545b4470bbcc865aa500ad6fef2e97d28bf',

lib/BUCK

diff --git a/lib/BUCK b/lib/BUCK
index 06f7c02..07a8031 100644
--- a/lib/BUCK
+++ b/lib/BUCK
@@ -1,8 +1 @@
 include_defs('//bucklets/maven_jar.bucklet')
-
-maven_jar(
-  name = 'gson',
-  id = 'com.google.code.gson:gson:2.3.1',
-  sha1 = 'ecb6e1f8e4b0e84c4b886c2f14a1500caf309757',
-  license = 'Apache2.0',
-)

lib/commons/BUCK

diff --git a/lib/commons/BUCK b/lib/commons/BUCK
deleted file mode 100644
index 7b7f70f..0000000
--- a/lib/commons/BUCK
+++ /dev/null
@@ -1,24 +0,0 @@
-include_defs('//bucklets/maven_jar.bucklet')
-
-maven_jar(
-  name = 'codec',
-  id = 'commons-codec:commons-codec:1.4',
-  sha1 = '4216af16d38465bbab0f3dff8efa14204f7a399a',
-  license = 'Apache2.0',
-  exclude = ['META-INF/LICENSE.txt', 'META-INF/NOTICE.txt'],
-)
-
-maven_jar(
-  name = 'lang',
-  id = 'commons-lang:commons-lang:2.5',
-  sha1 = 'b0236b252e86419eef20c31a44579d2aee2f0a69',
-  license = 'Apache2.0',
-  exclude = ['META-INF/LICENSE.txt', 'META-INF/NOTICE.txt'],
-)
-
-maven_jar(
-  name = 'io',
-  id = 'commons-io:commons-io:1.4',
-  sha1 = 'a8762d07e76cfde2395257a5da47ba7c1dbd3dce',
-  license = 'Apache2.0',
-)