Fix #275 - removed unused files.

These are the last few files to remove from the code which are not used. If they need to be recovered, then you can run the following:

git checkout $(git rev-list -n 1 HEAD -- "<filename here>")^ -- "<filename here>"

Command taken from http://stackoverflow.com/questions/953481/restore-a-deleted-file-in-a-git-repo
Fix #275 - removed unused files.

These are the last few files to remove from the code which are not used. If they need to be recovered, then you can run the following:

git checkout $(git rev-list -n 1 HEAD -- "<filename here>")^ -- "<filename here>"

Command taken from http://stackoverflow.com/questions/953481/restore-a-deleted-file-in-a-git-repo
Fix #332 which caused Q_rsqrt to produce NaNs.

Code was trying create a normal from a 0-sized normal. I've changed the
SP code to reflect how it looks in the MP code.
Fixed another problem with Q_rsqrt giving NaN.
Merge branch 'master' of github.com:xycaleth/OpenJK