Move fix into _str_contains of ArrowExtensionArray

Author: Aniketsy

pandas/core/arrays/arrow/array.py

@@ -2447,8 +2447,6 @@ def _convert_rank_result(self, result):
         return type(self)(result)
 
     def _str_contains(self, pat, case=True, flags=0, na=lib.no_default, regex=True):
-        import re
-
         if isinstance(pat, re.Pattern):
             if flags != 0:
                 # fallback to python object implementation
@@ -2476,11 +2474,6 @@ def _str_count(self, pat: str, flags: int = 0) -> Self:
             raise NotImplementedError(f"count not implemented with {flags=}")
         return type(self)(pc.count_substring_regex(self._pa_array, pat))
 
-    def _str_count(self, pat: str, flags: int = 0) -> Self:
-        if flags:
-            raise NotImplementedError(f"count not implemented with {flags=}")
-        return type(self)(pc.count_substring_regex(self._pa_array, pat))
-
     def _str_repeat(self, repeats: int | Sequence[int]) -> Self:
         if not isinstance(repeats, int):
             raise NotImplementedError(