Enabled pylint rules in db_engines module: (#11016)

- `unused_import` and `import_error` - not promting anymore
- changed unused param to private and removed `unused_argument`

superset/db_engines/hive.py

@@ -17,16 +17,16 @@
 from typing import Optional, TYPE_CHECKING
 
 if TYPE_CHECKING:
-    from pyhive.hive import Cursor  # pylint: disable=unused-import
-    from TCLIService.ttypes import TFetchOrientation  # pylint: disable=unused-import
+    from pyhive.hive import Cursor
+    from TCLIService.ttypes import TFetchOrientation
 
 # pylint: disable=protected-access
 # TODO: contribute back to pyhive.
 def fetch_logs(
     self: "Cursor",
-    max_rows: int = 1024,  # pylint: disable=unused-argument
+    _max_rows: int = 1024,
     orientation: Optional["TFetchOrientation"] = None,
-) -> str:  # pylint: disable=unused-argument
+) -> str:
     """Mocked. Retrieve the logs produced by the execution of the query.
     Can be called multiple times to fetch the logs produced after
     the previous call.
@@ -37,7 +37,7 @@ def fetch_logs(
     """
     from pyhive import hive
     from TCLIService import ttypes
-    from thrift import Thrift  # pylint: disable=import-error
+    from thrift import Thrift
 
     orientation = orientation or ttypes.TFetchOrientation.FETCH_NEXT
     try: