Remove "File System Read Only" test

Due to openbmc/openbmc#2250 changes, this test is no longer
valid.

Resolves  openbmc/openbmc-test-automation#1001

Change-Id: Ibce3327122af142d3c69bc60031b94e0c11bff0f
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
1 file changed