Remove unnecessary check since our memory allocation functions abort on failure.

* subversion/libsvn_subr/x509parse.c
  (x509_get_name): Remove unnecessary check.

Suggested by: philip


git-svn-id: https://svn.apache.org/repos/asf/subversion/branches/svn-auth-x509@1635322 13f79535-47bb-0310-9956-ffa450edef68