Fix for failing cases

Author: vkverma9534

pandas/core/arrays/_arrow_string_mixins.py

@@ -201,40 +201,22 @@ def _str_title(self) -> Self:
 
     def _str_swapcase(self) -> Self:
         return self._from_pyarrow_array(pc.utf8_swapcase(self._pa_array))
-
 def _str_removeprefix(self, prefix: str):
-    if prefix == "":
-        return self
-
     starts_with = pc.starts_with(self._pa_array, pattern=prefix)
     removed = pc.utf8_slice_codeunits(self._pa_array, len(prefix))
-    result = pc.if_else(
-        starts_with,
-        removed,
-        self._pa_array,
-    )
+    result = pc.if_else(starts_with, removed, self._pa_array)
     return self._from_pyarrow_array(result)
 
 
 def _str_removesuffix(self, suffix: str):
-    if suffix == "":
-        return self
-
     ends_with = pc.ends_with(self._pa_array, pattern=suffix)
-    removed = pc.utf8_slice_codeunits(
-        self._pa_array,
-        0,
-        stop=-len(suffix),
-    )
-    result = pc.if_else(
-        ends_with,
-        removed,
-        self._pa_array,
-    )
+    removed = pc.utf8_slice_codeunits(self._pa_array, 0, stop=-len(suffix))
+    result = pc.if_else(ends_with, removed, self._pa_array)
     return self._from_pyarrow_array(result)
 
 
 
+
     def _str_startswith(
         self, pat: str | tuple[str, ...], na: Scalar | lib.NoDefault = lib.no_default
     ):