virt.tests: remove autotest.scrashme test

autotest.scrashme test is duplicate with autotest.flail test, so plan to  remove
autotest.scrashme test; Why not remove autotest.flail test because flail test's
"syscall_table" newer than scrashme test used; 

diff scrashme-syscall-x86_64  flail-syscall-x86_64
2d1
<
7,9c6,8
< newstat
< newfstat
< newlstat
---
> stat
> fstat
> lstat
137c136
< ni_syscall (uselib)
---
> uselib
159c158
< sysctl
---
> _sysctl
169c168
< umount
---
> umount2
177c176
< ni_syscall (create_module)
---
> create_module
180,181c179,180
< ni_syscall (get_kernel_syms)
< ni_syscall (query_module)
---
> get_kernel_syms
> query_module
184,188c183,187
< ni_syscall (getpmsg)
< ni_syscall (putpmsg)
< ni_syscall (afs)
< ni_syscall (tux)
< ni_syscall (security)
---
> getpmsg
> putpmsg
> afs_syscall
> tuxcall
> security
208c207
< ni_syscall (set_thread_area)
---
> set_thread_area
214c213
< ni_syscall (get_thread_area)
---
> get_thread_area
217,218c216,217
< ni_syscall (epoll_ctl_old)
< ni_syscall (epoll_wait_old)
---
> epoll_ctl_old
> epoll_wait_old
232c231
< clock_retres
---
> clock_getres
239c238
< ni_syscall (vserver)
---
> vserver
265c264
< fstatat
---
> newfstatat
286c285
< timerfd
---
> timerfd_create
300,301c299
< rt_tgsigqueueinfo
< perf_counter_open
---
>

Signed-off-by: Xu Tian <xutian@redhat.com>