diff --git a/demo/data/boundaries.sbn b/demo/data/boundaries.sbn
deleted file mode 100644
index d988d225b..000000000
Binary files a/demo/data/boundaries.sbn and /dev/null differ
diff --git a/demo/data/boundaries_l.sbn b/demo/data/boundaries_l.sbn
deleted file mode 100644
index 4739b24db..000000000
Binary files a/demo/data/boundaries_l.sbn and /dev/null differ
diff --git a/demo/data/ontdrainage.sbn b/demo/data/ontdrainage.sbn
deleted file mode 100644
index f89d40e71..000000000
Binary files a/demo/data/ontdrainage.sbn and /dev/null differ
diff --git a/demo/data/popplaces.sbn b/demo/data/popplaces.sbn
deleted file mode 100644
index 4298585f7..000000000
Binary files a/demo/data/popplaces.sbn and /dev/null differ
diff --git a/demo/data/qcdrainage.sbn b/demo/data/qcdrainage.sbn
deleted file mode 100644
index 9f9af3e11..000000000
Binary files a/demo/data/qcdrainage.sbn and /dev/null differ
diff --git a/demo/data/roads.sbn b/demo/data/roads.sbn
deleted file mode 100644
index c65a91956..000000000
Binary files a/demo/data/roads.sbn and /dev/null differ