Drop deps from BUCK's genrule

With recent BUCKs, the deps are implicit, and the deps parameter is
gone. With the deps parameter gone, building this plugin broke. Hence,
we invoke genrule without the deps parameter and let BUCK pick up the
dependencies automatically.

Change-Id: I33ea12d39a02cb7bfc2a5323ef247d240fc9e49f

BUCK

diff --git a/BUCK b/BUCK
index e21b5d9..b7e4802 100644
--- a/BUCK
+++ b/BUCK
@@ -35,7 +35,6 @@
     name = name_zip,
     cmd = 'cp $SRCS $OUT && zip -qd $OUT ' + ' '.join(excludes),
     srcs = [ src ],
-    deps = [ src ],
     out = name_zip,
     visibility = visibility,
   )