Revert "CMFM: Fix landscape/rotation issues in file system info dialog"

The original commit is incomplete, and either causes 2 overlapping
disk usage graphs to be drawn upon device rotation, or causes
the disk usage graph to be improperly sized upon device rotation..

Revert the commit to bring in CAF's fixes for the original issue,
which does not exhibit the issue mentioned above.

This reverts commit c25f3b99.

RM-290

Change-Id: Ie699b17e07d4ea2b04b03181fe13c6d93ef5da62