diff --git a/test/functional/wallet_assumeutxo.py b/test/functional/wallet_assumeutxo.py
index 355fc32b858..a8c97be778f 100755
--- a/test/functional/wallet_assumeutxo.py
+++ b/test/functional/wallet_assumeutxo.py
@@ -85,15 +85,16 @@ class AssumeutxoTest(BitcoinTestFramework):
         # Balance of w wallet is still 0 because n3 has not synced yet
         assert_equal(n3.getbalance(), 0)
 
+        n3.unloadwallet("w")
         self.log.info("Backup from before the snapshot height can't be loaded during background sync (pruned node)")
         assert_raises_rpc_error(-4, expected_error_message, n3.restorewallet, "w2", "backup_w2.dat")
 
     def test_restore_wallet_pruneheight(self, n3):
         self.log.info("Ensuring wallet can't be restored from a backup that was created before the pruneheight (pruned node)")
         self.complete_background_validation(n3)
-        # After background sync, pruneheight is reset to 0, so mine 500 blocks
+        # After background sync, pruneheight is reset to 0, so mine 200 blocks
         # and prune the chain again
-        self.generate(n3, nblocks=500, sync_fun=self.no_op)
+        self.generate(n3, nblocks=200, sync_fun=self.no_op)
         assert_equal(n3.pruneblockchain(FINAL_HEIGHT), 298)  # 298 is the height of the last block pruned (pruneheight 299)
         error_message = "Wallet loading failed. Prune: last wallet synchronisation goes beyond pruned data. You need to -reindex (download the whole blockchain again in case of a pruned node)"
         # This backup (backup_w2.dat) was created at height 199, so it can't be restored in a node with a pruneheight of 299
diff --git a/test/functional/wallet_backup.py b/test/functional/wallet_backup.py
index 06b8799d348..14aa31cee10 100755
--- a/test/functional/wallet_backup.py
+++ b/test/functional/wallet_backup.py
@@ -91,25 +91,6 @@ class WalletBackupTest(BitcoinTestFramework):
         self.sync_mempools()
         self.generate(self.nodes[3], 1)
 
-    # As above, this mirrors the original bash test.
-    def start_three(self, args=()):
-        self.start_node(0, self.extra_args[0] + list(args))
-        self.start_node(1, self.extra_args[1] + list(args))
-        self.start_node(2, self.extra_args[2] + list(args))
-        self.connect_nodes(0, 3)
-        self.connect_nodes(1, 3)
-        self.connect_nodes(2, 3)
-        self.connect_nodes(2, 0)
-
-    def stop_three(self):
-        self.stop_node(0)
-        self.stop_node(1)
-        self.stop_node(2)
-
-    def erase_three(self):
-        for node_num in range(3):
-            (self.nodes[node_num].wallets_path / self.default_wallet_name / self.wallet_data_filename).unlink()
-
     def restore_invalid_wallet(self):
         node = self.nodes[3]
         invalid_wallet_file = self.nodes[0].datadir_path / 'invalid_wallet_file.bak'
@@ -191,7 +172,7 @@ class WalletBackupTest(BitcoinTestFramework):
         self.log.info("Test loading backup on a pruned node when the backup was created close to the prune height of the restoring node")
         node = self.nodes[3]
         self.restart_node(3, ["-prune=1", "-fastprune=1"])
-        # Ensure the chain tip is at height 214, because this test assume it is.
+        # Ensure the chain tip is at height 214, because this test assumes it is.
         assert_equal(node.getchaintips()[0]["height"], 214)
         # We need a few more blocks so we can actually get above an realistic
         # minimal prune height