ltp: remove ipc.signal_test_01 from disabled tests

LTP commit 998b77cd8 ("ipc/ipc_stress: Remove.") removed this test in
favor of the existing syscall tests.  Since this test doesn't exist
anymore, there's no need to explicitly disable it.

Test: vts-tradefed run vts --module VtsKernelLtp --test \
      ipc.signal_test_01
      (on hikey960)

Bug: 31152022
Change-Id: I8b6c6e9682b149ece50063e5f0b4befc86df9c74
Signed-off-by: Greg Hackmann <ghackmann@google.com>
1 file changed