[CIR] Remove -clangir-disable-passes from test

Close #1234
Update test after fix in  #1422

Author: bcardosolopes

clang/test/CIR/CodeGen/dtor-alias.cpp

@@ -1,8 +1,6 @@
-// FIXME: Remove of -clangir-disable-passes may trigger a memory safe bug in CIR internally during
-// lowering
 // RUN: %clang_cc1 -std=c++17 -triple x86_64-unknown-linux-gnu \
 // RUN:   -mconstructor-aliases -fclangir -emit-cir %s -o %t.cir \
-// RUN:   -clangir-disable-passes -o %t.cir
+// RUN:   -o %t.cir
 // RUN: FileCheck %s --input-file=%t.cir
 
 namespace {