https://gitlab.synchro.net/main/sbbs/-/commit/e53f173153fdaf0341cca95c
Modified Files:
	src/sbbs3/main.cpp
Log Message:
Remove unnecessary call to DuplicateHandle() in Win32 builds of sbbs_t::init()

The client_socket_dup is overwritten after with the return value of accept(),
so this was likely a socket/handle leak (since commit 74470573, 17 years ago).

Noticed this only after logging a new error in an SSH connection when this
call to DuplicateHandle() failed for some reason (WinError 6), but it seems
like it's been redundant code for a long time now. So just ace it and possibly
fix a resource leak.
--- SBBSecho 3.20-Linux