Removed extra / from DEPS file

Linux handled the extra / properly, but Windows did not,
so it had to be removed.

Change-Id: Ie42d8777aef83c0024bc9b3e5c631ece7e87e236
Reviewed-on: https://swiftshader-review.googlesource.com/8629
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
diff --git a/DEPS b/DEPS
index e3d2771..12639d2 100644
--- a/DEPS
+++ b/DEPS
@@ -12,5 +12,5 @@
 
 deps = {
   'third_party/pnacl-subzero':
-    Var('chromium_git') + '/native_client/pnacl-subzero@' +  Var('subzero_revision'),
+    Var('chromium_git') + 'native_client/pnacl-subzero@' +  Var('subzero_revision'),
 }
\ No newline at end of file