Remove "HW Decoding acceleration" settings ?

cf. vlc#26933 (closed)

This setting mixes hardware decoding with mediacodec and software rendering. Do we really need it (It has 0 usage I could think of) ?

The code to "download" the picture from MediaCodec need a major rework. 2 choices:

• Remove this settings
• Create an issue in videolan/vlc to rework the download code