remove XFAIL from some HIP tests

Author: t4c1

SYCL/AtomicRef/assignment_atomic64.cpp

@@ -4,9 +4,6 @@
 // RUN: %GPU_RUN_PLACEHOLDER %t.out
 // RUN: %ACC_RUN_PLACEHOLDER %t.out
 
-// XFAIL: hip
-// Expected failure because hip does not have atomic64 check implementation
-
 #include "assignment.h"
 #include <iostream>
 using namespace sycl;

SYCL/Basic/aspects.cpp

@@ -4,9 +4,6 @@
 // Hip is missing some of the parameters tested here so it fails with NVIDIA
 // XFAIL: hip_nvidia
 
-// XFAIL: hip
-// Expected failure because hip does not have atomic64 check implementation
-
 //==--------------- aspects.cpp - SYCL device test ------------------------==//
 //
 // Returns the various aspects of a device  and platform.