fix: remove duplicate function

Author: Rodrigo Roldán

src/eones/__init__.py

@@ -58,10 +58,9 @@ def format_date(date: Union[Date, datetime], fmt: str) -> str:
     """
     if isinstance(date, Date):
         return date.format(fmt)
-    elif isinstance(date, datetime):
+    if isinstance(date, datetime):
         return date.strftime(fmt)
-    else:
-        raise TypeError(f"Expected Date or datetime object, got {type(date).__name__}")
+    raise TypeError(f"Expected Date or datetime object, got {type(date).__name__}")
 
 
 def add_days(date: Date, days: int) -> Date:
@@ -129,10 +128,9 @@ def to_timestamp(date: Union[Date, datetime]) -> int:
     """
     if isinstance(date, Date):
         return int(date.to_unix())
-    elif isinstance(date, datetime):
+    if isinstance(date, datetime):
         return int(date.timestamp())
-    else:
-        raise ValueError("Expected Date or datetime object")
+    raise ValueError("Expected Date or datetime object")
 
 
 def from_timestamp(timestamp: Union[int, float], tz: str = "UTC") -> Date:

src/eones/interface.py

@@ -299,27 +299,6 @@ def _coerce_to_date(self, other) -> "Date":
 
         return self._parser.parse(other)
 
-    @staticmethod
-    def is_valid_format(date_str: str, formats: List[str]) -> bool:
-        """Check if a date string matches any of the provided formats.
-
-        Args:
-            date_str: Date string to validate
-            formats: List of format strings to try
-
-        Returns:
-            bool: True if the string matches any format
-        """
-        from datetime import datetime
-
-        for fmt in formats:
-            try:
-                datetime.strptime(date_str, fmt)
-                return True
-            except ValueError:
-                continue
-        return False
-
     @staticmethod
     def sanitize_formats(formats: List[Any]) -> List[str]:
         """Remove duplicates and invalid formats from a format list.