Remove un-necesary @// path

Makes it easier to use in external repositories.

Change-Id: I2aeef9baae51b35899fc5e4798029cbe5229c41c
Signed-off-by: Austin Schuh <austin.schuh@bluerivertech.com>
diff --git a/aos/seasocks/gen_embedded.bzl b/aos/seasocks/gen_embedded.bzl
index 7d67249..6b01dac 100644
--- a/aos/seasocks/gen_embedded.bzl
+++ b/aos/seasocks/gen_embedded.bzl
@@ -56,7 +56,7 @@
             ":%s__do_gen" % name,
         ],
         deps = [
-            "@//third_party/seasocks",
+            "//third_party/seasocks",
         ],
         target_compatible_with = target_compatible_with,
     )