tests: Remove some unneeded files

We are not using them at all and the directories are missing bunch of
files already.
Signed-off-by: NMartin Kletzander <mkletzan@redhat.com>

tests/virhostcpudata/linux-deconf-cpus/cpu/offline

-0-15,17-23,25-39,41-47,49-71,73-103,105-111,113-119,121-127,129-135,137-159

tests/virhostcpudata/linux-deconf-cpus/cpu/possible

-0-159

tests/virhostcpudata/linux-f21-mustang/cpu/offline

-

tests/virhostcpudata/linux-f21-mustang/cpu/possible

-0-7

tests/virhostcpudata/linux-raspberrypi/cpu/offline

-

tests/virhostcpudata/linux-raspberrypi/cpu/possible

-0

tests/virhostcpudata/linux-rhelsa-3.19.0-mustang/cpu/offline

-

tests/virhostcpudata/linux-rhelsa-3.19.0-mustang/cpu/possible

-0-7

tests/virhostcpudata/linux-subcores1/cpu/offline

-1-7,9-15,17-23,25-31,33-39,41-47,49-55,57-63,65-71,73-79,81-87,89-95,97-103,105-111,113-119,121-127,129-135,137-143,145-151,153-159

tests/virhostcpudata/linux-subcores1/cpu/possible

-0-159

tests/virhostcpudata/linux-subcores2/cpu/offline

-1-7,9-15,17-23,25-31,33-47,49-95,97-135,137-159

tests/virhostcpudata/linux-subcores2/cpu/possible

-0-159

tests/virhostcpudata/linux-subcores3/cpu/offline

-0-7,9-39,41-47,49-55,57-67,69-71,73-79,81-87,89-95,97-103,105-111,113-127,129-135,137-151

tests/virhostcpudata/linux-subcores3/cpu/possible

-0-159

tests/virhostcpudata/linux-test8/cpu/possible

-0-63