MFH: r447713

• Updated to 0.9.3
• Cleanup Makefile
• Regenerated patch for portlint

Changes: https://github.com/neutrinolabs/xrdp/releases/tag/v0.9.3Changes: https://github.com/neutrinolabs/xrdp/releases/tag/v0.9.3

PR: 220820
Submitted by: Koichiro IWAO (maintainer)
Reviewed by: lifanov (mentor)
Approved by: lifanov (mentor)
Differential Revision: https://reviews.freebsd.org/D11956

Approved by: ports-secteam (feld)