[SYCL][E2E] Reenable flaky L0 tests (#15459)

The two tests reenabled in this test were disabled due to flaky failure
on L0. This commit tries to reenable them.

Signed-off-by: Larsen, Steffen <steffen.larsen@intel.com>

Author: steffenlarsen

sycl/test-e2e/HostInteropTask/host-task-two-queues.cpp

@@ -1,8 +1,5 @@
 // RUN: %{build} -o %t.out
 // RUN: %{run} %t.out
-//
-// TODO: Flaky fail on Level Zero that is why mark as unsupported temporarily.
-// UNSUPPORTED: level_zero
 
 #include <iostream>
 #include <sycl/detail/core.hpp>

sycl/test-e2e/Plugin/sycl-ls.cpp

@@ -12,5 +12,3 @@
 // The test crashed on CUDA CI machines with the latest OpenCL GPU RT
 // (21.19.19792).
 // UNSUPPORTED: cuda
-// Temporarily disable on L0 due to fails in CI
-// UNSUPPORTED: level_zero