Delete signoff/user_proj_example directory
diff --git a/signoff/user_proj_example/OPENLANE_VERSION b/signoff/user_proj_example/OPENLANE_VERSION
deleted file mode 100644
index 6aa8d2d..0000000
--- a/signoff/user_proj_example/OPENLANE_VERSION
+++ /dev/null
@@ -1 +0,0 @@
-openlane f9b5781f5ef0bbdf39ab1c2bbd78be8db11b27f2
diff --git a/signoff/user_proj_example/PDK_SOURCES b/signoff/user_proj_example/PDK_SOURCES
deleted file mode 100644
index b08beb4..0000000
--- a/signoff/user_proj_example/PDK_SOURCES
+++ /dev/null
@@ -1 +0,0 @@
-open_pdks 41c0908b47130d5675ff8484255b43f66463a7d6