[gnome-shell] Remove unneeded theme files.

[Adel Gadllah <agadllah src gnome org>]

commit f88fbee80d45f5fe3131b648c17d5f8d5282a532
Author: Sean Wilson <suseux gmail com>
Date:   Sun Apr 17 11:38:44 2011 +0100

    Remove unneeded theme files.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=648006

 data/theme/mosaic-view-active.svg       |  113 -------------------------------
 data/theme/mosaic-view.svg              |  113 -------------------------------
 data/theme/move-window-on-new.svg       |   89 ------------------------
 data/theme/scroll-button-down-hover.png |  Bin 225 -> 0 bytes
 data/theme/scroll-button-down.png       |  Bin 225 -> 0 bytes
 data/theme/scroll-button-up-hover.png   |  Bin 211 -> 0 bytes
 data/theme/scroll-button-up.png         |  Bin 211 -> 0 bytes
 data/theme/section-more-open.svg        |   87 ------------------------
 data/theme/section-more.svg             |   87 ------------------------
 data/theme/separator-white.png          |  Bin 531 -> 0 bytes
 data/theme/single-view-active.svg       |   81 ----------------------
 data/theme/single-view.svg              |   81 ----------------------
 12 files changed, 0 insertions(+), 651 deletions(-)