iotests: remove qemu_io_pipe_and_status()

I know we just added it, sorry. This is done in favor of qemu_io() which
*also* returns the console output and status, but with more robust error
handling on failure.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220418211504.943969-11-jsnow@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>

tests/qemu-iotests/iotests.py

@@ -364,9 +364,6 @@ def qemu_io(*args: str, check: bool = True, combine_stdio: bool = True
     return qemu_tool(*qemu_io_wrap_args(args),
                      check=check, combine_stdio=combine_stdio)
 
-def qemu_io_pipe_and_status(*args):
-    return qemu_tool_pipe_and_status('qemu-io', qemu_io_wrap_args(args))
-
 def qemu_io_log(*args: str) -> 'subprocess.CompletedProcess[str]':
     result = qemu_io(*args, check=False)
     log(result.stdout, filters=[filter_testfiles, filter_qemu_io])