Revert "Fix GPUParticles are not rendered for older AMD GPUs with OpenGL+Angle"

[clayjohn]

Fixes: https://github.com/godotengine/godot/issues/96943 Fixes: https://github.com/godotengine/godot/issues/97875

This reverts commit 9cc9df52eb6ef32b80bd3bd725807fea70b00a89.

Maybe Reintroduces: https://github.com/godotengine/godot/issues/95797

We tested https://github.com/godotengine/godot/pull/96413 very carefully and Maran23 did a very detailed investigation, but this change has broken more projects than it fixed, so we need to revert for now and try again with something else.

[clayjohn]

@Maran23 Could you test this on your device that reproduces https://github.com/godotengine/godot/issues/95797

I have just pushed with another commit that removes the polyfill when running with ANGLE based on a comment you made in https://github.com/godotengine/godot/issues/95797#issuecomment-2317052291. I'm hoping that this will be enough to solve the bug you ran into while still keeping good behaviour on other devices

[Maran23]

Thank you for tackling this issue, as I am pretty clueless what to try next. Your idea with the ifdef looks promising. I can and will test this next week!

[Maran23]

Tested and it works perfectly fine now.

To be sure, we did the following:

• Tested Godot 4.3: Broken
• Tested Godot 4.4dev3: Works
• Tested this PR: Works

[clayjohn]

Awesome! Thank you for checking. I'll squash the commits in this PR and then we can merge it.

[Repiteo]

Thanks!