Fix build

definition of mako should be same as that in //build

Change-Id: Ia312817e5216250743d0e05f97e343cbbcb7f00c
diff --git a/build b/build
index c7133c5..6a19824 100644
--- a/build
+++ b/build
@@ -23,8 +23,7 @@
     <project name="third_party/mako"
              path="third_party/mako"
              remote="https://fuchsia.googlesource.com/third_party/mako"
-             gerrithost="https://fuchsia-review.googlesource.com"
-             githooks="manifest/git-hooks"/>
+             gerrithost="https://fuchsia-review.googlesource.com"/>
     <project name="third_party/pyyaml"
              path="third_party/pyyaml"
              remote="https://fuchsia.googlesource.com/third_party/pyyaml"