remove XFAIL for prefetch with cuda and hip (#464)

Author: AidanBeltonS

SYCL/USM/dep_events.cpp

@@ -11,10 +11,6 @@
 // RUN: %CPU_RUN_PLACEHOLDER %t1.out
 // RUN: %GPU_RUN_PLACEHOLDER %t1.out
 // RUN: %ACC_RUN_PLACEHOLDER %t1.out
-//
-// XFAIL: cuda || hip
-// TODO enable the test when cuda_piextUSMEnqueuePrefetch and
-// hip_piextUSMEnqueuePrefetch starts handling flags
 
 #include <CL/sycl.hpp>
 

SYCL/USM/prefetch.cpp

@@ -11,8 +11,6 @@
 // RUN: %GPU_RUN_PLACEHOLDER %t1.out
 // RUN: %ACC_RUN_PLACEHOLDER %t1.out
 
-// XFAIL: cuda
-
 #include <CL/sycl.hpp>
 
 using namespace cl::sycl;