Revert "[openmp] Fix build, test passes on CI unexpectedly"

This reverts commit c499d690cdb7ead72bcd086b08328a6d3a91b682.

GitOrigin-RevId: dc9edc6a6dba6e0a580775633f55240e5ada1772
diff --git a/libomptarget/test/mapping/reduction_implicit_map.cpp b/libomptarget/test/mapping/reduction_implicit_map.cpp
index 429bb68..2f64b95 100644
--- a/libomptarget/test/mapping/reduction_implicit_map.cpp
+++ b/libomptarget/test/mapping/reduction_implicit_map.cpp
@@ -1,5 +1,9 @@
 // RUN: %libomptarget-compilexx-run-and-check-generic
 
+// Wrong results on amdgpu
+// XFAIL: amdgcn-amd-amdhsa
+// XFAIL: amdgcn-amd-amdhsa-newRTL
+
 #include <stdio.h>
 
 void sum(int* input, int size, int* output)