Clean up bad layout files in zuul tests

Clean up the bad layout files in the zuul tests by removing a redundant
file (bad_pipeline and bad_pipeline1.yaml were identical). Annotate the
reason the layout is bad in each file. Finally remove a redundant swift
section. Both bad switf sections were failing for the same reason, a
missing name entry.

Change-Id: I0fd09da1fb0ec7443fa7d12a3b31809546a01afd
diff --git a/tests/fixtures/layouts/bad_projects1.yaml b/tests/fixtures/layouts/bad_projects1.yaml
index c210c43..e3d381f 100644
--- a/tests/fixtures/layouts/bad_projects1.yaml
+++ b/tests/fixtures/layouts/bad_projects1.yaml
@@ -4,6 +4,7 @@
 
 projects:
   - name: foo
+  # gate pipeline is not defined.
     gate:
       - test