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, 99 deletions

diff --git a/libs/usvfs/src/shared/exceptionex.h b/libs/usvfs/src/shared/exceptionex.h
deleted file mode 100644
index 4c298a5..0000000
--- a/libs/usvfs/src/shared/exceptionex.h
+++ /dev/null
@@ -1,99 +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/>.
-*/
-#pragma once
-
-#include "logging.h"
-#include <boost/exception/all.hpp>
-#include <stdexcept>
-
-typedef boost::error_info<struct tag_message, DWORD> ex_win_errcode;
-typedef boost::error_info<struct tag_message, std::string> ex_msg;
-
-struct std_boost_exception : virtual boost::exception, virtual std::exception
-{
-  const char* what() const noexcept override
-  {
-    return boost::diagnostic_information_what(*this);
-  }
-};
-
-struct incompatibility_error : std_boost_exception
-{};
-struct usage_error : std_boost_exception
-{};
-struct data_error : std_boost_exception
-{};
-struct file_not_found_error : std_boost_exception
-{};
-struct timeout_error : std_boost_exception
-{};
-struct unknown_error : std_boost_exception
-{};
-struct node_missing_error : std_boost_exception
-{};
-
-#define USVFS_THROW_EXCEPTION(x) BOOST_THROW_EXCEPTION(x)
-
-void logExtInfo(const std::exception& e, LogLevel logLevel = LogLevel::Warning);
-
-namespace usvfs::shared
-{
-
-class windows_error : public std::runtime_error
-{
-public:
-  windows_error(const std::string& message, int errorcode = GetLastError())
-      : runtime_error(constructMessage(message, errorcode)), m_ErrorCode(errorcode)
-  {}
-
-  int getErrorCode() const { return m_ErrorCode; }
-
-private:
-  int m_ErrorCode;
-
-  std::string constructMessage(const std::string& input, int errorcode);
-};
-
-class guard
-{
-public:
-  explicit guard(std::function<void()> f) : m_f(std::move(f)) {}
-
-  ~guard()
-  {
-    if (m_f) {
-      m_f();
-    }
-  }
-
-  guard(const guard&);
-  guard& operator=(const guard&);
-
-private:
-  std::function<void()> m_f;
-};
-
-}  // namespace usvfs::shared
-
-#define CONCATENATE_DIRECT(s1, s2) s1##s2
-#define CONCATENATE(s1, s2) CONCATENATE_DIRECT(s1, s2)
-#define ANONYMOUS_VARIABLE(str) CONCATENATE(str, __LINE__)
-#define ON_BLOCK_EXIT(f) usvfs::shared::guard ANONYMOUS_VARIABLE(guard)(f)