Remove pointless free, and use preferred way of calling d2i_* functions

(Imported from upstream's 535bc8faf69dc4ff39e2ee99195b268cf99b9569)

Change-Id: Ia5abf4dce9dc8cdf5a9b77a3e360a40b5f815adf
Reviewed-on: https://boringssl-review.googlesource.com/3672
Reviewed-by: Adam Langley <agl@google.com>
1 file changed