test: Remove incorrect and unused try-block in assert_debug_log

test/functional/test_framework/test_node.py

@@ -313,9 +313,9 @@ class TestNode():
         with open(debug_log, encoding='utf-8') as dl:
             dl.seek(0, 2)
             prev_size = dl.tell()
-        try:
+
         yield
-        finally:
+
         while True:
             found = True
             with open(debug_log, encoding='utf-8') as dl: