diff --git a/examples/Wall/.doit.db.bak b/examples/Wall/.doit.db.bak
deleted file mode 100644
index 9a217d4..0000000
--- a/examples/Wall/.doit.db.bak
+++ /dev/null
@@ -1,4 +0,0 @@
-'structure_simulation_disp_x', (15360, 1859)
-'meshing', (17408, 1789)
-'structure_simulation_disp_y', (19456, 1717)
-'create_design', (14848, 109)
diff --git a/examples/Wall/.doit.db.dat b/examples/Wall/.doit.db.dat
deleted file mode 100644
index 917b50f..0000000
Binary files a/examples/Wall/.doit.db.dat and /dev/null differ
diff --git a/examples/Wall/.doit.db.dir b/examples/Wall/.doit.db.dir
deleted file mode 100644
index 9a217d4..0000000
--- a/examples/Wall/.doit.db.dir
+++ /dev/null
@@ -1,4 +0,0 @@
-'structure_simulation_disp_x', (15360, 1859)
-'meshing', (17408, 1789)
-'structure_simulation_disp_y', (19456, 1717)
-'create_design', (14848, 109)