headers removed in libressl

Index: Pdf4QtLibCore/sources/pdfcertificatestore.cpp
--- Pdf4QtLibCore/sources/pdfcertificatestore.cpp.orig
+++ Pdf4QtLibCore/sources/pdfcertificatestore.cpp
@@ -36,9 +36,7 @@
 #include <openssl/err.h>
 #include <openssl/sha.h>
 #include <openssl/rsa.h>
-#include <openssl/rsaerr.h>
 #include <openssl/ts.h>
-#include <openssl/tserr.h>
 #include <openssl/pem.h>
 
 #include <QDir>
