move-only util data to test/functional/data/util

test/functional/data/util/blanktxv1.json

@@ -0,0 +1,14 @@
+{
+    "txid": "d21633ba23f70118185227be58a63527675641ad37967e2aa461559f577aec43",
+    "hash": "d21633ba23f70118185227be58a63527675641ad37967e2aa461559f577aec43",
+    "version": 1,
+    "size": 10,
+    "vsize": 10,
+    "weight": 40,
+    "locktime": 0,
+    "vin": [
+    ],
+    "vout": [
+    ],
+    "hex": "01000000000000000000"
+}