Disable upgrades tests that require BDB if BDB is not compiled

test/functional/feature_backwards_compatibility.py

@@ -354,6 +354,8 @@ class BackwardsCompatibilityTest(BitcoinTestFramework):
         hdkeypath = v17_info["hdkeypath"]
         pubkey = v17_info["pubkey"]
 
+        if self.is_bdb_compiled():
+            # Old wallets are BDB and will only work if BDB is compiled
             # Copy the 0.16 wallet to the last Bitcoin Core version and open it:
             shutil.copyfile(
                 os.path.join(node_v16_wallets_dir, "wallets/u1_v16"),