Revert "Backup configuration files before overwriting (#11216)"

This reverts commit 90e25a6.

homeassistant/config.py

@@ -233,68 +233,21 @@ def create_default_config(config_dir, detect_location=True):
 
             config_file.write(DEFAULT_CONFIG)
 
-        timestamp = date_util.now().strftime('%Y%m%dT%H%M%S')
-        # Check for existing secrets file.
-        # If it exists, back it up before recreating it.
-        if os.path.isfile(secret_path):
-            backup_secret_path = "{}.{}.bak".format(
-                secret_path,
-                timestamp
-            )
-            print("Found existing secrets file. Backing up and re-creating.")
-            os.rename(secret_path, backup_secret_path)
         with open(secret_path, 'wt') as secret_file:
             secret_file.write(DEFAULT_SECRETS)
 
         with open(version_path, 'wt') as version_file:
             version_file.write(__version__)
 
-        # Check for existing group file.
-        # If it exists, back it up before recreating it.
-        if os.path.isfile(group_yaml_path):
-            backup_group_path = "{}.{}.bak".format(
-                group_yaml_path,
-                timestamp
-            )
-            print("Found existing group file. Backing up and re-creating.")
-            os.rename(group_yaml_path, backup_group_path)
         with open(group_yaml_path, 'wt'):
             pass
 
-        # Check for existing automation file.
-        # If it exists, back it up before recreating it.
-        if os.path.isfile(automation_yaml_path):
-            backup_automation_path = "{}.{}.bak".format(
-                automation_yaml_path,
-                timestamp
-            )
-            print("Found existing automation file. Backing up and",
-                  "re-creating.")
-            os.rename(automation_yaml_path, backup_automation_path)
         with open(automation_yaml_path, 'wt') as fil:
             fil.write('[]')
 
-        # Check for existing group file.
-        # If it exists, back it up before recreating it.
-        if os.path.isfile(script_yaml_path):
-            backup_script_path = "{}.{}.bak".format(
-                script_yaml_path,
-                timestamp
-            )
-            print("Found existing script file. Backing up and re-creating.")
-            os.rename(script_yaml_path, backup_script_path)
         with open(script_yaml_path, 'wt'):
             pass
 
-        # Check for existing customize file.
-        # If it exists, back it up before recreating it.
-        if os.path.isfile(customize_yaml_path):
-            backup_customize_path = "{}.{}.bak".format(
-                customize_yaml_path,
-                timestamp
-            )
-            print("Found existing customize file. Backing up and re-creating.")
-            os.rename(customize_yaml_path, backup_customize_path)
         with open(customize_yaml_path, 'wt'):
             pass