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, 102 deletions

diff --git a/libs/usvfs/CMakePresets.json b/libs/usvfs/CMakePresets.json
deleted file mode 100644
index 156ccfe..0000000
--- a/libs/usvfs/CMakePresets.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "configurePresets": [
-    {
-      "cacheVariables": {
-        "BUILD_TESTING": {
-          "type": "BOOL",
-          "value": "ON"
-        }
-      },
-      "errors": {
-        "deprecated": true
-      },
-      "hidden": true,
-      "name": "cmake-dev",
-      "warnings": {
-        "deprecated": true,
-        "dev": true
-      }
-    },
-    {
-      "cacheVariables": {
-        "VCPKG_MANIFEST_NO_DEFAULT_FEATURES": {
-          "type": "BOOL",
-          "value": "ON"
-        }
-      },
-      "toolchainFile": "$env{VCPKG_ROOT}/scripts/buildsystems/vcpkg.cmake",
-      "hidden": true,
-      "name": "vcpkg"
-    },
-    {
-      "cacheVariables": {
-        "VCPKG_MANIFEST_FEATURES": {
-          "type": "STRING",
-          "value": "testing"
-        }
-      },
-      "hidden": true,
-      "inherits": ["vcpkg"],
-      "name": "vcpkg-dev"
-    },
-    {
-      "binaryDir": "${sourceDir}/vsbuild64",
-      "architecture": {
-        "strategy": "set",
-        "value": "x64"
-      },
-      "cacheVariables": {
-        "VCPKG_TARGET_TRIPLET": {
-          "type": "STRING",
-          "value": "x64-windows-static-md"
-        }
-      },
-      "hidden": true,
-      "name": "windows-x64"
-    },
-    {
-      "binaryDir": "${sourceDir}/vsbuild32",
-      "architecture": {
-        "strategy": "set",
-        "value": "Win32"
-      },
-      "cacheVariables": {
-        "VCPKG_TARGET_TRIPLET": {
-          "type": "STRING",
-          "value": "x86-windows-static-md"
-        }
-      },
-      "hidden": true,
-      "name": "windows-x86"
-    },
-    {
-      "cacheVariables": {
-        "CMAKE_CXX_FLAGS": "/EHsc /MP /W4"
-      },
-      "generator": "Visual Studio 17 2022",
-      "inherits": ["cmake-dev", "vcpkg-dev"],
-      "hidden": true,
-      "name": "vs2022-windows",
-      "toolset": "v143"
-    },
-    {
-      "inherits": ["vs2022-windows", "windows-x64"],
-      "name": "vs2022-windows-x64"
-    },
-    {
-      "inherits": ["vs2022-windows", "windows-x86"],
-      "name": "vs2022-windows-x86"
-    }
-  ],
-  "buildPresets": [
-    {
-      "name": "vs2022-windows-x64",
-      "configurePreset": "vs2022-windows-x64"
-    },
-    {
-      "name": "vs2022-windows-x86",
-      "configurePreset": "vs2022-windows-x86"
-    }
-  ],
-  "version": 3
-}