Revert "xf86-video-nvidia-legacy: update to xf86-video-nvidia-legacy-304.84"

another nvidia f**k up, broken tty*, god knows what else

This reverts commit ee610c51473df2b98d7f97ba67e90b51eac45400.
Revert "xf86-video-nvidia: update to xf86-video-nvidia-304.84"

another nvidia f**k up, broken tty*, god knows what else

This reverts commit 9b8f50327d15207ac20923bf22c82b854bc9a47f.
bash: fix $PS1 in shell/debugshell