Cleanup: Remove use of old "-enable-correct-eh-support" option from a test

This option enables LowerInvoke's obsolete SJLJ EH support, but the
target used in this test (ARM Darwin) no longer uses the LowerInvoke
pass, so the option has no effect here.  This target currently uses
the newer SjLjEHPrepare pass instead.

This cleanup will help with removing "-enable-correct-eh-support".

Differential Revision: http://llvm-reviews.chandlerc.com/D3064