diff --git a/mypy.ini b/mypy.ini
index 63ccb6eb994ba..c775f0c709123 100644
--- a/mypy.ini
+++ b/mypy.ini
@@ -20,9 +20,6 @@ ignore_errors=True
 [mypy-pandas.core.computation.pytables]
 ignore_errors=True
 
-[mypy-pandas.core.config_init]
-ignore_errors=True
-
 [mypy-pandas.core.indexes.base]
 ignore_errors=True
 
diff --git a/pandas/core/config_init.py b/pandas/core/config_init.py
index bfbdfa2c9ff87..dc63b15cf9c13 100644
--- a/pandas/core/config_init.py
+++ b/pandas/core/config_init.py
@@ -277,8 +277,6 @@ def use_numexpr_cb(key):
     Valid values: False,True
 """
 
-style_backup = dict()
-
 
 def table_schema_cb(key):
     from pandas.io.formats.printing import _enable_data_resource_formatter