diff --git a/testdata/subtreeconsistency/additional/consistency-check-on-empty-tree-(size1-is-zero)-is-useless.json b/testdata/subtreeconsistency/additional/consistency-check-on-empty-tree-(size1-is-zero)-is-useless.json
deleted file mode 100644
index a181a06..0000000
--- a/testdata/subtreeconsistency/additional/consistency-check-on-empty-tree-(size1-is-zero)-is-useless.json
+++ /dev/null
@@ -1,12 +0,0 @@
-{
-  "start": 0,
-  "end": 0,
-  "size": 1,
-  "root1": "47DEQpj8HBSa+/TImW+5JCeuQeRkm5NMpJWZG3hSuFU=",
-  "root2": "47DEQpj8HBSa+/TImW+5JCeuQeRkm5NMpJWZG3hSuFU=",
-  "proof": [
-    "47DEQpj8HBSa+/TImW+5JCeuQeRkm5NMpJWZG3hSuFU="
-  ],
-  "desc": "consistency check on empty tree (size1 is zero) is useless",
-  "wantErr": true
-}
\ No newline at end of file
diff --git a/testdata/subtreeconsistency/additional/sizes-are-equal-(one)-and-proof-is-empty.json b/testdata/subtreeconsistency/additional/sizes-are-equal-(one)-and-proof-is-empty.json
deleted file mode 100644
index 0218579..0000000
--- a/testdata/subtreeconsistency/additional/sizes-are-equal-(one)-and-proof-is-empty.json
+++ /dev/null
@@ -1,10 +0,0 @@
-{
-  "start": 0,
-  "end": 1,
-  "size": 1,
-  "root1": "ZG9uJ3QgY2FyZSAy",
-  "root2": "ZG9uJ3QgY2FyZSAy",
-  "proof": [],
-  "desc": "sizes are equal (one) and proof is empty",
-  "wantErr": false
-}
\ No newline at end of file
diff --git a/testdata/subtreeconsistency/additional/sizes-are-equal-(one)-but-roots-are-not.json b/testdata/subtreeconsistency/additional/sizes-are-equal-(one)-but-roots-are-not.json
deleted file mode 100644
index 4320aab..0000000
--- a/testdata/subtreeconsistency/additional/sizes-are-equal-(one)-but-roots-are-not.json
+++ /dev/null
@@ -1,10 +0,0 @@
-{
-  "start": 0,
-  "end": 1,
-  "size": 1,
-  "root1": "ZG9uJ3QgY2FyZSAx",
-  "root2": "ZG9uJ3QgY2FyZSAy",
-  "proof": [],
-  "desc": "sizes are equal (one) but roots are not",
-  "wantErr": true
-}
\ No newline at end of file
diff --git a/testdata/subtreeconsistency/additional/sizes-are-equal-(zero)-and-proof-is-empty.json b/testdata/subtreeconsistency/additional/sizes-are-equal-(zero)-and-proof-is-empty.json
deleted file mode 100644
index d66f96d..0000000
--- a/testdata/subtreeconsistency/additional/sizes-are-equal-(zero)-and-proof-is-empty.json
+++ /dev/null
@@ -1,10 +0,0 @@
-{
-  "start": 0,
-  "end": 0,
-  "size": 0,
-  "root1": "ZG9uJ3QgY2FyZSAx",
-  "root2": "ZG9uJ3QgY2FyZSAx",
-  "proof": [],
-  "desc": "sizes are equal (zero) and proof is empty",
-  "wantErr": true
-}
\ No newline at end of file
diff --git a/testdata/subtreeconsistency/additional/sizes-are-equal-(zero)-but-roots-are-not.json b/testdata/subtreeconsistency/additional/sizes-are-equal-(zero)-but-roots-are-not.json
deleted file mode 100644
index a9ae44f..0000000
--- a/testdata/subtreeconsistency/additional/sizes-are-equal-(zero)-but-roots-are-not.json
+++ /dev/null
@@ -1,10 +0,0 @@
-{
-  "start": 0,
-  "end": 0,
-  "size": 0,
-  "root1": "ZG9uJ3QgY2FyZSAx",
-  "root2": "ZG9uJ3QgY2FyZSAy",
-  "proof": [],
-  "desc": "sizes are equal (zero) but roots are not",
-  "wantErr": true
-}
\ No newline at end of file