Remove hyphen from rand_name calls in identity 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 identity tests.

Change-Id: I8b1eb0ea1db708fa02673b3c3963fcb39d1a3ff6
22 files changed