QWindowsGLContext: replace homebrew Array with std::vector

std::vector is all that the Array original author dreamed about,
and more: never shrinks capacity, non CoWed, ...

Appart from append(), the Array API was modeled after std::vector
(size_t size_type, etc) already, so the port to std::vector is
minimal. The only change besides append() -> push_back() was not
assuming const_iterator being const T*.

Remove now-unused Array.

Change-Id: I02bc71441d01e554e320746d82dbc00f74c5466d
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>

0 files changed, 0 insertions, 0 deletions