apacheGH-49579: [C++] Fix xsimd 14.1.0 build failure (apache#49580)

### Rationale for this change
Fix the build on MacOS with newest xsimd version.
A fix for an internal bug in xsimd had been added in apacheGH-49449 apacheGH-49450 to boost performances.
Now that the fix has been merged in xsimd 14.1.0, the internals have changed leading to the failure.
The ported fix is kept for older xsimd versions until we can set a minimum xsimd version of 14.1.0.

### What changes are included in this PR?
Remove a backported fix on xsimd versions that include it.

### Are these changes tested?
Yes.

### Are there any user-facing changes?
No.

* GitHub Issue: apache#49579

Authored-by: AntoinePrv <AntoinePrv@users.noreply.github.com>
Signed-off-by: Sutou Kouhei <kou@clear-code.com>

Author: AntoinePrv

cpp/src/arrow/util/bpacking_simd_kernel_internal.h

@@ -153,14 +153,15 @@ template <typename Arch>
 constexpr bool IsNeon = std::is_base_of_v<xsimd::neon, Arch>;
 
 /// Wrapper around ``xsimd::bitwise_lshift`` with optimizations for non implemented sizes.
-//
-// We replace the variable left shift by a variable multiply with a power of two.
-//
-// This trick is borrowed from Daniel Lemire and Leonid Boytsov, Decoding billions of
-// integers per second through vectorization, Software Practice & Experience 45 (1), 2015.
-// http://arxiv.org/abs/1209.2137
-//
+///
+/// We replace the variable left shift by a variable multiply with a power of two.
+///
+/// This trick is borrowed from Daniel Lemire and Leonid Boytsov, Decoding billions of
+/// integers per second through vectorization, Software Practice & Experience 45 (1),
+/// 2015. http://arxiv.org/abs/1209.2137
+///
 /// TODO(xsimd) Tracking in https://github.com/xtensor-stack/xsimd/pull/1220
+/// When migrating, be sure to use batch_constant overload, and not the batch one.
 template <typename Arch, typename Int, Int... kShifts>
 auto left_shift(const xsimd::batch<Int, Arch>& batch,
                 xsimd::batch_constant<Int, Arch, kShifts...> shifts)
@@ -200,14 +201,16 @@ auto left_shift(const xsimd::batch<Int, Arch>& batch,
     return xsimd::bitwise_cast<Int>(shifted0 | shifted1);
   }
 
-  // TODO(xsimd) bug fixed likely in xsimd>14.0.0
+  // TODO(xsimd) bug fixed in xsimd 14.1.0
   // https://github.com/xtensor-stack/xsimd/pull/1266
+#if XSIMD_VERSION_MAJOR < 14 || ((XSIMD_VERSION_MAJOR == 14) && XSIMD_VERSION_MINOR == 0)
   if constexpr (IsNeon<Arch>) {
     using SInt = std::make_signed_t<Int>;
     constexpr auto signed_shifts =
         xsimd::batch_constant<SInt, Arch, static_cast<SInt>(kShifts)...>();
     return xsimd::kernel::bitwise_lshift(batch, signed_shifts.as_batch(), Arch{});
   }
+#endif
 
   return batch << shifts;
 }
@@ -237,7 +240,8 @@ auto right_shift_by_excess(const xsimd::batch<Int, Arch>& batch,
   constexpr auto IntSize = sizeof(Int);
 
   // Architecture for which there is no variable right shift but a larger fallback exists.
-  /// TODO(xsimd) Tracking for Avx2 in https://github.com/xtensor-stack/xsimd/pull/1220
+  // TODO(xsimd) Tracking for Avx2 in https://github.com/xtensor-stack/xsimd/pull/1220
+  // When migrating, be sure to use batch_constant overload, and not the batch one.
   if constexpr (kIsAvx2 && (IntSize == sizeof(uint8_t) || IntSize == sizeof(uint16_t))) {
     using twice_uint = SizedUint<2 * IntSize>;
 
@@ -265,14 +269,16 @@ auto right_shift_by_excess(const xsimd::batch<Int, Arch>& batch,
     return xsimd::bitwise_rshift<kMaxRShift>(left_shift(batch, kLShifts));
   }
 
-  // TODO(xsimd) bug fixed likely in xsimd>14.0.0
+  // TODO(xsimd) bug fixed in xsimd 14.1.0
   // https://github.com/xtensor-stack/xsimd/pull/1266
+#if XSIMD_VERSION_MAJOR < 14 || ((XSIMD_VERSION_MAJOR == 14) && XSIMD_VERSION_MINOR == 0)
   if constexpr (IsNeon<Arch>) {
     using SInt = std::make_signed_t<Int>;
     constexpr auto signed_shifts =
         xsimd::batch_constant<SInt, Arch, static_cast<SInt>(kShifts)...>();
     return xsimd::kernel::bitwise_rshift(batch, signed_shifts.as_batch(), Arch{});
   }
+#endif
 
   return batch >> shifts;
 }