diff --git a/src/meshio/_cli/_convert.py b/src/meshio/_cli/_convert.py
index 44766735d..ce19f2e22 100644
--- a/src/meshio/_cli/_convert.py
+++ b/src/meshio/_cli/_convert.py
@@ -34,18 +34,6 @@ def add_args(parser):
         type=str,
         help="float format used in output ASCII files (default: .16e)",
     )
-    parser.add_argument(
-        "--prune",
-        "-p",
-        action="store_true",
-        help="remove lower order cells, remove orphaned nodes",
-    )
-    parser.add_argument(
-        "--prune-z-0",
-        "-z",
-        action="store_true",
-        help="remove third (z) dimension if all points are 0",
-    )
     parser.add_argument(
         "--sets-to-int-data",
         "-s",
@@ -64,16 +52,6 @@ def convert(args):
     # read mesh data
     mesh = read(args.infile, file_format=args.input_format)
 
-    if args.prune:
-        mesh.prune()
-
-    if (
-        args.prune_z_0
-        and mesh.points.shape[1] == 3
-        and np.all(np.abs(mesh.points[:, 2]) < 1.0e-13)
-    ):
-        mesh.points = mesh.points[:, :2]
-
     # Some converters (like VTK) require `points` to be contiguous.
     mesh.points = np.ascontiguousarray(mesh.points)