chore: Remove unused utility functions (#2677)

chore: Remove dead code

Author: FBruzzesi

narwhals/_utils.py

@@ -640,18 +640,6 @@ def _import_native_namespace(module_name: str) -> ModuleType:
     return import_module(module_name)
 
 
-def remove_prefix(text: str, prefix: str) -> str:  # pragma: no cover
-    if text.startswith(prefix):
-        return text[len(prefix) :]
-    return text
-
-
-def remove_suffix(text: str, suffix: str) -> str:  # pragma: no cover
-    if text.endswith(suffix):
-        return text[: -len(suffix)]
-    return text  # pragma: no cover
-
-
 def flatten(args: Any) -> list[Any]:
     return list(args[0] if (len(args) == 1 and _is_iterable(args[0])) else args)
 

utils/check_api_reference.py

@@ -10,7 +10,6 @@
 import polars as pl
 
 import narwhals as nw
-from narwhals._utils import remove_prefix
 
 LOWERCASE = tuple(string.ascii_lowercase)
 
@@ -33,6 +32,12 @@ def iter_api_reference_names(tp: type[Any]) -> Iterator[str]:
         yield name
 
 
+def remove_prefix(text: str, prefix: str) -> str:
+    if text.startswith(prefix):
+        return text[len(prefix) :]
+    return text
+
+
 ret = 0
 
 NAMESPACES = {"dt", "str", "cat", "name", "list", "struct"}