Revert "[mlir][test] Make SME e2e tests require an emulator (#86489)"

This reverts commit 7b52552.

Broken bot:
* https://lab.llvm.org/buildbot/#/builders/179/builds/9794

Author: banach-space

mlir/cmake/modules/MLIRCheckHardwareFeatures.cmake

@@ -6,22 +6,14 @@ This dialect defines custom and LLVM IR intrinsic operations that are used to
 target Arm Scalable Matrix Extension. Through the available conversion and
 ArmSME passes you can, for example, lower a
 [linalg.matmul](https://mlir.llvm.org/docs/Dialects/Linalg/#linalgmatmul-linalgmatmulop)
-operation to Arm SME
+opereation to Arm SME
 [FMOPA](https://developer.arm.com/documentation/ddi0602/2023-03/SME-Instructions/FMOPA--widening---Half-precision-floating-point-sum-of-outer-products-and-accumulate-)
 (floating-point outer product) operations. See one of the in-tree end-to-end
 integration tests for reference:
 
 * [Linalg/CPU/ArmSME/matmul.mlir](https://github.com/llvm/llvm-project/blob/main/mlir/test/Integration/Dialect/Linalg/CPU/ArmSME/matmul.mlir)
 * [Vector/CPU/ArmSME/test-outerproduct-f64.mlir](https://github.com/llvm/llvm-project/blob/main/mlir/test/Integration/Dialect/Vector/CPU/ArmSME/test-outerproduct-f64.mlir)
 
-In order to run ArmSME integration tests, include these flags in the CMake
-invocation when configuring LLVM and MLIR:
-```bash
-  -DMLIR_INCLUDE_INTEGRATION_TESTS=On
-  -DMLIR_RUN_ARM_SME_TESTS=On
-  -DARM_EMULATOR_EXECUTABLE=<path-to-emulator> 
-```
-
 These tests are run "post-commit" by the
 [clang-aarch64-sve-vla](https://lab.llvm.org/buildbot/#/builders/197) LLVM
 BuildBot worker.

mlir/docs/Dialects/ArmSME.md

@@ -1,5 +1,3 @@
-include(MLIRCheckHardwareFeatures)
-
 add_subdirectory(CAPI)
 add_subdirectory(lib)
 
@@ -41,10 +39,6 @@ if (MLIR_INCLUDE_INTEGRATION_TESTS)
   option(MLIR_RUN_ARM_SVE_TESTS "Run Arm SVE tests.")
   option(MLIR_RUN_ARM_SME_TESTS "Run Arm SME tests.")
 
-  # Check whether an emulator is required - if yes then make sure that it's
-  # been set.
-  check_emulator(MLIR_RUN_ARM_SVE_TESTS "HWCAP_SVE" ARM_EMULATOR_EXECUTABLE)
-  check_emulator(MLIR_RUN_ARM_SME_TESTS "HWCAP2_SME" ARM_EMULATOR_EXECUTABLE)
 
   # The native target may not be enabled when cross compiling, raise an error.
   if(NOT MLIR_ENABLE_EXECUTION_ENGINE)