Revert "[OpenMP] Fix two usm tests for amdgpus." (#77983)

Reverts llvm/llvm-project#77851

GitOrigin-RevId: 93efa2b8b9eb46fcf79a71f594cd5ac377302184
diff --git a/libomptarget/test/lit.cfg b/libomptarget/test/lit.cfg
index b278c3a..9078561 100644
--- a/libomptarget/test/lit.cfg
+++ b/libomptarget/test/lit.cfg
@@ -117,10 +117,7 @@
     # If the architecture is invalid, assume it is supported.
     supports_unified_shared_memory = True
 if config.libomptarget_current_target.startswith('amdgcn'):
-    if not (config.amdgpu_test_arch == "gfx908" or
-            config.amdgpu_test_arch == "gfx90a" or
-            config.amdgpu_test_arch == "gfx942") :
-       supports_unified_shared_memory = False
+    supports_unified_shared_memory = False
 if supports_unified_shared_memory:
    config.available_features.add('unified_shared_memory')
 
diff --git a/libomptarget/test/lit.site.cfg.in b/libomptarget/test/lit.site.cfg.in
index 7c75aaa..2d63811 100644
--- a/libomptarget/test/lit.site.cfg.in
+++ b/libomptarget/test/lit.site.cfg.in
@@ -10,7 +10,6 @@
 config.cuda_path = "@CUDA_TOOLKIT_ROOT_DIR@"
 config.cuda_libdir = "@CUDA_LIBDIR@"
 config.cuda_test_arch = "@LIBOMPTARGET_DEP_CUDA_ARCH@"
-config.amdgpu_test_arch = "@LIBOMPTARGET_AMDGPU_DETECTED_ARCH_LIST@"
 config.libomptarget_obj_root = "@CMAKE_CURRENT_BINARY_DIR@/@CURRENT_TARGET@"
 config.library_dir = "@LIBOMPTARGET_LIBRARY_DIR@"
 config.llvm_library_dir = "@LIBOMPTARGET_LLVM_LIBRARY_DIR@"
diff --git a/libomptarget/test/unified_shared_memory/api.c b/libomptarget/test/unified_shared_memory/api.c
index 0c6a937..4f0f93b 100644
--- a/libomptarget/test/unified_shared_memory/api.c
+++ b/libomptarget/test/unified_shared_memory/api.c
@@ -1,9 +1,10 @@
-// RUN: %libomptarget-compile-generic
-// RUN: env HSA_XNACK=1 \
-// RUN: %libomptarget-run-generic | %fcheck-generic
+// RUN: %libomptarget-compile-run-and-check-generic
 // XFAIL: nvptx64-nvidia-cuda
 // XFAIL: nvptx64-nvidia-cuda-LTO
 
+// Fails on amdgpu with error: GPU Memory Error
+// UNSUPPORTED: amdgcn-amd-amdhsa
+
 #include <omp.h>
 #include <stdio.h>
 
diff --git a/libomptarget/test/unified_shared_memory/close_enter_exit.c b/libomptarget/test/unified_shared_memory/close_enter_exit.c
index b116c65..71be4c9 100644
--- a/libomptarget/test/unified_shared_memory/close_enter_exit.c
+++ b/libomptarget/test/unified_shared_memory/close_enter_exit.c
@@ -1,11 +1,11 @@
-// RUN: %libomptarget-compile-generic
-// RUN: env HSA_XNACK=1 \
-// RUN: %libomptarget-run-generic | %fcheck-generic
+// RUN: %libomptarget-compile-run-and-check-generic
 
 // REQUIRES: unified_shared_memory
 // UNSUPPORTED: clang-6, clang-7, clang-8, clang-9
 
+// Fails on amdgpu with error: GPU Memory Error
 // Fails on nvptx with error: an illegal memory access was encountered
+// XFAIL: amdgcn-amd-amdhsa
 // XFAIL: nvptx64-nvidia-cuda
 // XFAIL: nvptx64-nvidia-cuda-LTO