Add zone validation

src/helpers.py

@@ -70,15 +70,6 @@ def extract_domain_from_path(path: str) -> str|None:
 
     return None
 
-def validate_zone(zone_name, content) -> bool:
-    try:
-        dns.zone.from_text(content, zone_name, relativize=False)
-        logging.info(f"Zone {zone_name} parsed successfully")
-        return True
-    except Exception as e:
-        logging.error(f"Parse failed for zone {zone_name}")
-        return False
-
 def export_single_zone(trigger_path: str) -> list[Path]:
     logging.info(f"Starting export of single zone for trigger path {trigger_path})")
     ensure_git_repo()