diff --git a/post_processing/pylbo/data_containers.py b/post_processing/pylbo/data_containers.py
index a7341018..394c5812 100644
--- a/post_processing/pylbo/data_containers.py
+++ b/post_processing/pylbo/data_containers.py
@@ -151,8 +151,6 @@ class LegolasDataSet(LegolasDataContainer):
         Dictionary containing the unit normalisations.
     eq_names : numpy.ndarray
         Array containing the names of the equilibrium arrays.
-    legolas_version : ~pylbo._version.VersionHandler
-        The current Legolas version.
     """
 
     def __init__(self, datfile):
@@ -221,11 +219,6 @@ def u3_str(self) -> str:
         """Returns the :math:`u_3` string."""
         return "z"
 
-    @property
-    def has_residuals(self) -> bool:
-        """Returns `True` if the dataset has residuals."""
-        return self.header["residuals_written"]
-
     @property
     def continua(self) -> dict:
         """Returns the continua in a dict with the continua names as keys."""
diff --git a/post_processing/pylbo/utilities/datfiles/header_legacy.py b/post_processing/pylbo/utilities/datfiles/header_legacy.py
index e0509668..292e5133 100644
--- a/post_processing/pylbo/utilities/datfiles/header_legacy.py
+++ b/post_processing/pylbo/utilities/datfiles/header_legacy.py
@@ -8,7 +8,6 @@
 from pylbo.utilities.datfiles.istream_reader import (
     SIZE_COMPLEX,
     SIZE_DOUBLE,
-    SIZE_INT,
     read_boolean_from_istream,
     read_complex_from_istream,
     read_float_from_istream,
@@ -16,7 +15,6 @@
     read_string_from_istream,
     requires_version,
 )
-from pylbo.utilities.toolbox import transform_to_numpy
 
 
 class LegolasLegacyHeader(LegolasHeader):