Buck: Fix build

Bug: Issue 3154
Change-Id: I11455c438d6c153a94c55afd9596462b7daa9204

BUCK

diff --git a/BUCK b/BUCK
index 9a3e8dc..fd0018a 100644
--- a/BUCK
+++ b/BUCK
@@ -19,22 +19,19 @@
 def strip_jar(
     name,
     src,
-    excludes = [],
-    visibility = [],
-  ):
-  name_zip = name + '.zip'
+    excludes):
+  stripped = name + '.zip'
   genrule(
-    name = name_zip,
-    cmd = 'cp $SRCS $OUT && zip -qd $OUT ' + ' '.join(excludes),
-    srcs = [ src ],
-    deps = [ src ],
-    out = name_zip,
-    visibility = visibility,
+    name = stripped,
+    cmd = 'cp $(location %s) $OUT;' % src +
+      'zip -qd $OUT ' +
+      ' '.join(excludes),
+    out = stripped,
   )
+
   prebuilt_jar(
     name = name,
-    binary_jar = ':' + name_zip,
-    visibility = visibility,
+    binary_jar = ':' + stripped,
   )
 
 strip_jar(