Drop use of "filter" in test layouts

Change-Id: Iec6e3be64c5d838a6f1cc5c37fd64c4abfdab8ea
diff --git a/tests/fixtures/layout-requirement-email.yaml b/tests/fixtures/layout-requirement-email.yaml
index 6ed7603..4bfb733 100644
--- a/tests/fixtures/layout-requirement-email.yaml
+++ b/tests/fixtures/layout-requirement-email.yaml
@@ -3,7 +3,7 @@
     manager: IndependentPipelineManager
     require:
       approval:
-        - email-filter: jenkins@example.com
+        - email: jenkins@example.com
     trigger:
       gerrit:
         - event: comment-added
@@ -20,7 +20,7 @@
       gerrit:
         - event: comment-added
           require-approval:
-            - email-filter: jenkins@example.com
+            - email: jenkins@example.com
     success:
       gerrit:
         verified: 1