Remove the iree compile xfail (#1251)

iree-org/iree#20491 has fix the f16 compiler
issue So remove the iree compile xfail.

Author: AmosLewis

sharktank/tests/models/llama/benchmark_amdgpu_test.py

@@ -225,9 +225,6 @@ def setUp(self):
         ]
 
     @skipif_run_quick_llama_test
-    @pytest.mark.xfail(
-        reason="Iree Compile Error", strict=True, raises=IreeCompileException
-    )
     def testBenchmark8B_f16_TP1_Non_Decomposed_Input_Len_128(self):
         output_file_name = self.dir_path_8b / "f16_torch_128_tp1"
         output_mlir = self.llama8b_f16_torch_sdpa_artifacts.create_file(
@@ -273,9 +270,6 @@ def testBenchmark8B_f16_TP1_Non_Decomposed_Input_Len_128(self):
         )
 
     @skipif_run_quick_llama_test
-    @pytest.mark.xfail(
-        reason="Iree Compile Error", strict=True, raises=IreeCompileException
-    )
     def testBenchmark8B_f16_TP1_Non_Decomposed_Input_Len_2048(self):
         output_file_name = self.dir_path_8b / "f16_torch_2048_tp1"
         output_mlir = self.llama8b_f16_torch_sdpa_artifacts.create_file(