[SYCL] Un-XFAIL two E2E tests on PVC (#16131)

They were disabled as part of preparations for enabling PVC in our CI,
but they pass locally (and in our downstream), so I'm dropping the
`XFAIL`.

Author: AlexeySachkov

sycl/test-e2e/Basic/accessor/accessor.cpp

@@ -1,9 +1,6 @@
 // RUN: %{build} -DSYCL2020_DISABLE_DEPRECATION_WARNINGS -o %t.out
 // RUN: %{run} %t.out
 
-// XFAIL: arch-intel_gpu_pvc
-// XFAIL-TRACKER: https://github.com/intel/llvm/issues/14826
-
 //==----------------accessor.cpp - SYCL accessor basic test ----------------==//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.

sycl/test-e2e/DeviceArchitecture/device_architecture_comparison_on_device_aot.cpp

@@ -1,8 +1,5 @@
 // REQUIRES: arch-intel_gpu_pvc, ocloc
 
-// XFAIL: run-mode
-// XFAIL-TRACKER: https://github.com/intel/llvm/issues/14826
-
 // RUN: %clangxx -fsycl -fsycl-targets=intel_gpu_pvc %s -o %t.out
 // RUN: %{run} %t.out