[lldb][test_suite] Fix skipIfTargetAndroid decorator
Summary:
Delete the duplicate func skipIfTargetAndroid
Fix the old one. It didn't work for missing an argument bugnumber, this somehow made the decorator failed
Differential Revision: https://reviews.llvm.org/D64583
Patch by Wanyi Ye <kusmour@gmail.com>
llvm-svn: 366771