diff --git a/test/diff/generic-diff_produced-by-1 b/test/diff/generic-diff_produced-by-1
deleted file mode 100644
index 1e9a6baf4..000000000
--- a/test/diff/generic-diff_produced-by-1
+++ /dev/null
@@ -1,6 +0,0 @@
-@@ -12,0 +12,5 @@
-+Did you find a bug? Let us know.
-+
-+Any question or suggestion?
-+
-+This page produced by the IETF Secretariat for the IESG
\ No newline at end of file
diff --git a/test/diff/generic-diff_produced-by-2 b/test/diff/generic-diff_produced-by-2
deleted file mode 100644
index a8ac74456..000000000
--- a/test/diff/generic-diff_produced-by-2
+++ /dev/null
@@ -1,8 +0,0 @@
-@@ -17,0 +17,1 @@
-+Did you find a bug? Let us know.
-@@ -18,0 +19,5 @@
-+Any question or suggestion?
-+
-+This page produced by the IETF Secretariat for the IESG
-+
-+
\ No newline at end of file
diff --git a/test/diff/generic-diff_produced-by_3 b/test/diff/generic-diff_produced-by_3
deleted file mode 100644
index 8043b0d54..000000000
--- a/test/diff/generic-diff_produced-by_3
+++ /dev/null
@@ -1,6 +0,0 @@
-+
-+Did you find a bug? Let us know.
-+
-+Any question or suggestion?
-+
-+This page produced by the IETF Secretariat for the IESG
\ No newline at end of file