[ESIMD] Reenable the thread_id test after CI was updated (#9037)

Author: fineg74

sycl/test-e2e/ESIMD/thread_id_test.cpp

@@ -2,7 +2,6 @@
 // UNSUPPORTED: cuda || hip
 // RUN: %clangxx -fsycl %s -o %t.out
 // RUN: %GPU_RUN_PLACEHOLDER %t.out
-// XFAIL: gpu && !esimd_emulator
 //==- thread_id_test.cpp - Test to verify thread id functionlity-==//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
@@ -12,8 +11,6 @@
 //===----------------------------------------------------------------------===//
 
 // This is basic test to validate thread id functions.
-// TODO: Enable the test once the GPU RT supporting the functionality reaches
-// the CI
 
 #include <cmath>
 #include <iostream>