Add placement deletes to avoid warnings on VC++

When compiling with VC++ 2017, Godot generates huge numbers of
C4291 warnings about missing placement delete.

I have not found a way to disable these warnings using compiler
options: AFAICT there is no equivalent to `-f-no-exceptions` for
VC++ (there is only /EH to change the exception-handling model,
/GX is deprecated) and adding /wd4291  to the
`disable_nonessential_warnings` list in the `SConstruct` file
or even compiling with `warnings=no` does not disable the
messages.

Placement delete is only called when placement new throws an
exception, since Godot doesn't use exceptions this change should
have no runtime effect.

Fixes #12654 (probably, difficult to say without log)

0 files changed, 0 insertions, 0 deletions