diff --git a/lib/galaxy/util/__init__.py b/lib/galaxy/util/__init__.py
index 0db936efc525..607207eb872c 100644
--- a/lib/galaxy/util/__init__.py
+++ b/lib/galaxy/util/__init__.py
@@ -1194,25 +1194,6 @@ def unicodify(
     return value
 
 
-def decodify(value, encoding="utf-8", encoding_error="replace", decoding="latin-1", decoding_error="replace"):
-    """
-    Returns a Unicode string or None.
-    """
-    if value is None:
-        return value
-
-    if isinstance(value, bytes):
-        return value.decode(decoding, decoding_error)
-
-    if isinstance(value, str):
-        return value.encode(encoding, encoding_error).decode(decoding, decoding_error)
-
-    if not isinstance(value, (str, bytes)):
-        value = str(value)
-
-    return value
-
-
 def filesystem_safe_string(
     s, max_len=255, truncation_chars="..", strip_leading_dot=True, invalid_chars=("/",), replacement_char="_"
 ):
diff --git a/lib/galaxy/util/zipstream.py b/lib/galaxy/util/zipstream.py
index 0b1358166b68..5fa8bc0909b2 100644
--- a/lib/galaxy/util/zipstream.py
+++ b/lib/galaxy/util/zipstream.py
@@ -11,7 +11,6 @@
 
 import zipstream
 
-from galaxy.util import decodify
 from .path import safe_walk
 
 CRC32_MIN = 1444
@@ -42,7 +41,8 @@ def response(self) -> Iterator[bytes]:
     def get_headers(self) -> Dict[str, str]:
         headers = {}
         if self.archive_name:
-            headers["Content-Disposition"] = f'attachment; filename="{decodify(self.archive_name)}.zip"'
+            archive_name = self.archive_name.encode("utf-8", "replace").decode("latin-1")
+            headers["Content-Disposition"] = f'attachment; filename="{archive_name}.zip"'
         if self.upstream_mod_zip:
             headers["X-Archive-Files"] = "zip"
         else:
diff --git a/test/unit/util/test_utils.py b/test/unit/util/test_utils.py
index bb6000623c39..81d448dd4a1a 100644
--- a/test/unit/util/test_utils.py
+++ b/test/unit/util/test_utils.py
@@ -139,14 +139,3 @@ class Stuff(str, Enum):
         B = "b"
 
     assert util.enum_values(Stuff) == ["a", "c", "b"]
-
-
-def test_decodify():
-    assert util.decodify(None) is None
-    assert util.decodify("simple string") == "simple string"
-    assert util.decodify(3) == "3"
-    assert util.decodify(Exception("strĩñg")) == "strĩñg"
-    s = "lâtín strìñg"
-    assert util.decodify(s, encoding="latin-1") == s
-    s = "تست"
-    assert util.decodify(s, decoding="utf-8") == s