Cabbiev2 cleanup and a few corrections: (1) Get rid of two completely unused bitmaps...

Cabbiev2 cleanup and a few corrections: (1) Get rid of two completely unused bitmaps. (2) Combine the two bitmaps used as background on the Iriver remote into one, name it consistently and change the .wps file accordingly. (3) Add the missing '0dB' volume image to the greyscale versions, including .wps file changes. Rename those greyscale volume images while at it, so that they are consistent with the rest - the 'vol08' one is now 'vol-9', because it is used for above line level. (4) Use the %X tag correctly, currently there were coordinates specified with it in most .wps files. (5) Set the bitmap's mime-type correctly for conformity.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16742 a1c6a512-1295-4272-9138-f99709370657