Remove vendored usvfs and Windows-only usvfs code paths

The Linux port uses its own in-process FUSE VFS (FuseConnector), so
usvfs was dead weight: libs/usvfs/ was never built, usvfsconnector.cpp
was explicitly REMOVE_ITEM'd from the source list, and every call site
was already guarded by #ifdef _WIN32 with a working Linux branch (the
Windows build is also broken on this branch, since FUSE3 is a hard
find_package dependency).

- Drop libs/usvfs/ and src/src/usvfsconnector.{cpp,h}
- Collapse #ifdef _WIN32 / usvfs include branches in organizercore,
  mainwindow, settings, util, spawn
- Remove getUsvfsVersionString() and the "usvfs: ..." log field
- Remove vfs32/64DLLName APPPARAMs (nothing reads them)
- Relabel About dialog "usvfs:" row to "VFS: FUSE 3"

1 files changed, 0 insertions, 47 deletions

diff --git a/libs/usvfs/src/shared/directory_tree.cpp b/libs/usvfs/src/shared/directory_tree.cpp
deleted file mode 100644
index 33d7ae1..0000000
--- a/libs/usvfs/src/shared/directory_tree.cpp
+++ /dev/null
@@ -1,47 +0,0 @@
-/*
-Userspace Virtual Filesystem
-
-Copyright (C) 2015 Sebastian Herbord. All rights reserved.
-
-This file is part of usvfs.
-
-usvfs is free software: you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation, either version 3 of the License, or
-(at your option) any later version.
-
-usvfs is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with usvfs. If not, see <http://www.gnu.org/licenses/>.
-*/
-#include "directory_tree.h"
-#include "tree_container.h"
-
-namespace usvfs::shared
-{
-
-fs::path::iterator nextIter(const fs::path::iterator& iter,
-                            const fs::path::iterator& end)
-{
-  fs::path::iterator next = iter;
-  advanceIter(next, end);
-  return next;
-}
-
-void advanceIter(fs::path::iterator& iter, const fs::path::iterator& end)
-{
-  if (iter == end) {
-    return;
-  }
-
-  ++iter;
-  while (iter != end && (iter->wstring() == L"/" || iter->wstring() == L"\\" ||
-                         iter->wstring() == L"."))
-    ++iter;
-}
-
-}  // namespace usvfs::shared