Signature2Test: calling verify a second time can throw

The docs for Signature don't guarantee that the implementation will not
throw. It is perfectly fine to throw here. The original bug for which
this check was added is bogus (re:
https://code.google.com/p/android/issues/detail?id=34933) in that the RI
behavior is clearly not the same as this test indicates with the
StandardNames.IS_RI branch.

Bug: 18869265
Change-Id: I6e413cac85daf5b14bc20adc2279741ab11d97f6
1 file changed