Delete skins/common/images/magnify-clip.png

There are still some requests for it per bug 69277 comment 90, but per
bug 69678 comment 10 all usages are forward-compatible or have been
already removed.

Bug: 69277
Change-Id: If6a16fb5aa5a826a58c8dec67e3583ccf12761e2
Delete skins/common/images/bullet.gif

There are still some requests for it per bug 69277 comment 90, but per
bug 69678 comment 12 all usages have been already removed.

This is the last file in the skins/common/ directory.

Bug: 69277
Change-Id: Id9de81d0efa91fa20dfd10d56a8ae814de43ff6e
Merge "Delete skins/common/images/magnify-clip.png"
Merge "Delete skins/common/images/bullet.gif"