Don't blacklist Qt3DWindow anymore
Don't blacklist Qt3DWindow anymore

It used to lead to the invalid "3d_window" and "3DWindow" names, but
that got fixed in the previous commit.

rust-qt/generator,rust-qt/cpp_to_rust,rust-qt/cpp_to_rust,rust-qt/generator,rust-qt/cpp_to_rust,rust-qt/generator,rust-qt/cpp_to_rust,rust-qt/generator,rust-qt/cpp_to_rust