Remove all projects regex

Change-Id: I3c7d8b97e4b28fc1b4f657636a6df7bc41c46e13
diff --git a/zuul.d/_projects.yaml b/zuul.d/_projects.yaml
deleted file mode 100644
index baad817..0000000
--- a/zuul.d/_projects.yaml
+++ /dev/null
@@ -1,8 +0,0 @@
-# This file is managed by ansible, do not edit directly
----
-- project:
-    name: ^.*$
-    check:
-      jobs: []
-    gate:
-      jobs: []