Remove hyphen from rand_name calls in scenario tests

data_utils.rand_name() appends randam charactors with a hypen like:

 def rand_name(name=''):
     randbits = str(random.randint(1, 0x7fffffff))
     if name:
         return name + '-' + randbits

So it is not necessary to specify a hypen in caller side.
This patch removes a hypen in scenario tests.

Change-Id: I21f19e27c3081ac35317d9422436bd8062eced2d
5 files changed