[SYCL][E2E] Remove XFAIL from DeviceLib/assert-windows.cpp test (#17379)

This test was xfailed because previously we would ignore features in
`build-only` mode so it would be incorrectly ran on Linux, despite the
Windows requirement. This was fixed in #16725.

Fixes #16507

Author: ayylol

sycl/test-e2e/DeviceLib/assert-windows.cpp

@@ -1,8 +1,5 @@
 // REQUIRES: cpu,windows
 //
-// XFAIL: *
-// XFAIL-TRACKER: https://github.com/intel/llvm/issues/16507
-//
 // RUN: %{build} -o %t.out
 //
 // MSVC implementation of assert does not call an unreachable built-in, so the