[JITLink] Remove an overly strict error check in JITLink's eh-frame parser.

The error check required FDEs to refer to the most recent CIE, but the eh-frame
spec allows them to refer to any previously seen CIE. This patch removes the
offending check.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@358840 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed