Revert unintentional global_array.hlsl edit

Author: hekota

clang/test/CodeGenHLSL/convergence/global_array.hlsl

@@ -1,6 +1,5 @@
 // RUN: %clang_cc1 -finclude-default-header -triple spirv-unknown-vulkan-compute -emit-llvm -disable-llvm-passes -o - %s | FileCheck %s
 
-// XFAIL: *
 // CHECK: define internal spir_func void @__cxx_global_var_init()
 // CHECK: [[entry_token:%.*]] = call token @llvm.experimental.convergence.entry()
 // CHECK: br label %[[loop_entry:.*]]