Remove unnecessary imports

Signed-off-by: Eli Engelhardt <eli.engelhardt@emerson.com>

Author: eli-engelhardt

nilrt_snac/_configs/_syslog_ng_config.py

@@ -2,8 +2,7 @@
 
 from nilrt_snac import logger
 from nilrt_snac._configs._base_config import _BaseConfig
-from nilrt_snac._configs._config_file import _ConfigFile
-from nilrt_snac._common import _check_group_ownership, _check_owner, _check_permissions, _cmd
+from nilrt_snac._common import _check_owner, _cmd
 from nilrt_snac.opkg import opkg_helper