proton: Remove leftovers of esync and mention ntsync.

Author: ivyl

README.md

@@ -319,8 +319,8 @@ the Wine prefix. Removing the option will revert to the previous behavior.
 | `nod3d11`             | `PROTON_NO_D3D11`                  | Disable `d3d11.dll`, for d3d11 games which can fall back to and run better with d3d9. |
 | `nod3d10`             | `PROTON_NO_D3D10`                  | Disable `d3d10.dll` and `dxgi.dll`, for d3d10 games which can fall back to and run better with d3d9. |
 | `dxvkd3d8`            | `PROTON_DXVK_D3D8`                 | Use DXVK's `d3d8.dll`. |
-| `noesync`             | `PROTON_NO_ESYNC`                  | Do not use eventfd-based in-process synchronization primitives. |
 | `nofsync`             | `PROTON_NO_FSYNC`                  | Do not use futex-based in-process synchronization primitives. (Automatically disabled on systems with no `FUTEX_WAIT_MULTIPLE` support.) |
+|                       | `PROTON_NO_NTSYNC`                 | Do not use ntsync. |
 |                       | `HOST_LC_ALL`                      | Set value to a locale to override all other system locale settings for a game.  This variable should be used instead of `LC_ALL`. |
 | `disablenvapi`        | `PROTON_DISABLE_NVAPI`             | Disable NVIDIA's NVAPI GPU support library. |
 | `nativevulkanloader`  |                                    | Use the Vulkan loader shipped with the game instead of Proton's built-in Vulkan loader. This breaks VR support, but is required by a few games. |
@@ -341,5 +341,6 @@ the Wine prefix. Removing the option will revert to the previous behavior.
 | `fnad3d11`            | `FNA3D_FORCE_DRIVER=D3D11`         | Force FNA to use D3D11 for rendering. |
 | `seccomp`             | `PROTON_USE_SECCOMP`               | **Note: Obsoleted in Proton 5.13.** In older versions, enable seccomp-bpf filter to emulate native syscalls, required for some DRM protections to work. |
 | `d9vk`                | `PROTON_USE_D9VK`                  | **Note: Obsoleted in Proton 5.0.** In older versions, use Vulkan-based DXVK instead of OpenGL-based wined3d for d3d9. |
+| `noesync`             | `PROTON_NO_ESYNC`                  | **Note: Obsoleted in Proton 11.0.** In older versions, do not use eventfd-based in-process synchronization primitives. |
 
 

proton

@@ -1686,7 +1686,6 @@ class Session:
         self.check_environment("PROTON_DXVK_D3D8", "dxvkd3d8")
         self.check_environment("PROTON_NO_D3D11", "nod3d11")
         self.check_environment("PROTON_NO_D3D10", "nod3d10")
-        self.check_environment("PROTON_NO_ESYNC", "noesync")
         self.check_environment("PROTON_NO_FSYNC", "nofsync")
         self.check_environment("PROTON_FORCE_LARGE_ADDRESS_AWARE", "forcelgadd")
         self.check_environment("PROTON_OLD_GL_STRING", "oldglstr")
@@ -1702,11 +1701,6 @@ class Session:
         self.check_environment("PROTON_FORCE_NVAPI", "forcenvapi")
         self.check_environment("PROTON_HIDE_APU", "hideapu")
 
-        if "noesync" in self.compat_config:
-            self.env.pop("WINEESYNC", "")
-        else:
-            self.env["WINEESYNC"] = "1"
-
         if "nofsync" in self.compat_config:
             self.env.pop("WINEFSYNC", "")
         else: