[libc++abi] Remove unnecessary dependency on std::unique_ptr (#73277)

The demangling terminate handler uses a function `demangle()` to perform
the demangling. This function returns an `std::unique_ptr`, relying on
custom deleter and `const_cast` hacks to deal with the facts that only
one branch actually allocates, and that the pointer type needs to be
`const char*`. However, the destructor of the returned `std::unique_ptr`
will never actually run, because the sole place this function is ever
called is right before the terminate handler aborts the program. So all
this is unnecessary, and creates a dependency onto `<memory>`. This
change removes the `demangle()` function and replaces the call with an
immediately invoked lambda expression that simply returns a raw pointer
in both cases, which should be fine because the memory can never be
freed here anyways.

0 files changed, 0 insertions, 0 deletions