cleanup

src/core/SerieScanner.py

@@ -82,17 +82,6 @@ class SerieScanner:
         """Reinitialize the folder dictionary."""
         self.folderDict: dict[str, Serie] = {}
 
-    def is_null_or_whitespace(self, value: Optional[str]) -> bool:
-        """Check if a string is None or whitespace.
-        
-        Args:
-            value: String value to check
-            
-        Returns:
-            True if string is None or contains only whitespace
-        """
-        return value is None or value.strip() == ""
-
     def get_total_to_scan(self) -> int:
         """Get the total number of folders to scan.
         
@@ -178,7 +167,8 @@ class SerieScanner:
                     serie = self.__read_data_from_file(folder)
                     if (
                         serie is not None
-                        and not self.is_null_or_whitespace(serie.key)
+                        and serie.key
+                        and serie.key.strip()
                     ):
                         # Delegate the provider to compare local files with
                         # remote metadata, yielding missing episodes per