Remove obsolete comment.

This comment is no longer true. It dates from OpenSSL's initial commit, but
stopped being true in upstream's 413c4f45ed0508d2242638696b7665f499d68265.

Change-Id: I47377d992a00e3d57c795fef893e19e109dd6945
Reviewed-on: https://boringssl-review.googlesource.com/2431
Reviewed-by: Adam Langley <agl@google.com>
1 file changed