Revert "libreoffice: reinstante and use curl 7.48 before the removal of a...

Revert "libreoffice: reinstante and use curl 7.48 before the removal of a required feature. CVE's not fixed because of that decision: a Windows-specific DLL substitution and a mbedSSL/PolarSSL specific insufficient certificate validation"

This reverts commit 8fd84fcb.

While I was testing my solution, @obadz have committed a different and
hopefully a better one.