removed extra if statement

Author: road-1

pandas/core/dtypes/dtypes.py

@@ -2277,11 +2277,6 @@ def name(self) -> str:  # type: ignore[override]
     @cache_readonly
     def numpy_dtype(self) -> np.dtype:
         """Return an instance of the related numpy dtype"""
-        if pa.types.is_string(self.pyarrow_dtype) or pa.types.is_large_string(
-            self.pyarrow_dtype
-        ):
-            # pa.string().to_pandas_dtype() = object which we don't want
-            return np.dtype(str)
         try:
             return np.dtype(self.pyarrow_dtype.to_pandas_dtype())
         except (NotImplementedError, TypeError):