Remove windows-32 ffmpeg download

[richardsondev]

Issue

When os.arch() == ia32 we try to download windows-32 ffmpeg but on ffbinaries it no longer exists: https://ffbinaries.com/api/v1/version/latest

From investigation, this is by design on their end and they will not provide 32-bit Windows binaries anymore.

On the Windows 11 x64 machine I am building on, os.arch() is returning ia32 and os.platform() returns win32 which is leading to ffmpeg to not automatically download as it attempts to download the windows-32 binary.

os.arch() and os.platform() from console.log:

But this is a 64-bit machine:

This change

This PR is removing windows-32 ffmpeg downloading since the link doesn't exist anymore. On my local Windows 11 x64 machine, it is now successfully downloading ffmpeg automatically from windows-64.

We could also find a new source for 32-bit Windows ffmpeg but from my investigation, the usage of 32-bit Windows is low.
At least on Steam, 32-bit Windows is only 0.18% of Windows machines: https://store.steampowered.com/hwsurvey/

0.18% = (0.12+0.05)*100/96.68

Tests