Remove the docs/proposals directory (#6313)

* Remove the docs/proposals directory

This directory will get added to the spec repository in the following PR:
https://github.com/shader-slang/spec/pull/6

This closes #6155.

* Remove entry from .github/CODEOWNERS file

* Redirect some proposal references

---------

Co-authored-by: Yong He <yonghe@outlook.com>

1 files changed, 0 insertions, 61 deletions

diff --git a/docs/proposals/005-write-only-textures.md b/docs/proposals/005-write-only-textures.md
deleted file mode 100644
index 698ea6e86..000000000
--- a/docs/proposals/005-write-only-textures.md
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@@ -1,61 +0,0 @@
-SP #005: Write-Only Textures
-=================
-
-Add Write-Only texture types to Slang's core module.
-
-
-Status
-------
-
-Status: Design Review.
-
-Implementation: N/A
-
-Author: Yong He
-
-Reviewer: 
-
-Background
-----------
-
-Slang inherits HLSL's RWTexture types to represent UAV/storage texture resources, this works well for HLSL, GLSL, CUDA and SPIRV targets.
-However Metal has the notion of write only textures, and WebGPU has limited support of read-write textures. In WebGPU, a read-write texture can only have
-uncompressed single-channel 32bit texel format, which means a `RWTexture2D` cannot be used to write to a `rgba8unorm` texture.
-
-To provide better mapping to write-only textures on Metal and WebGPU, we propose to add write-only textures to Slang to allow writing portable code
-without relying on backend workarounds.
-
-Proposed Approach
------------------
-
-Slang's core module already defines all texture types as a single generic `_Texture<T, ..., access, ...>` type, where `access` is a value parameter
-representing the allowed access of the texture. The valid values of access are:
-
-```
-kCoreModule_ResourceAccessReadOnly
-kCoreModule_ResourceAccessReadWrite
-kCoreModule_ResourceAccessRasterizerOrdered
-kCoreModule_ResourceAccessFeedback
-```
-
-We propose to add another case:
-
-```
-kCoreModule_ResourceAccessWriteOnly
-```
-
-to represent write-only textures.
-
-
-Also add the typealiases prefixed with "W" for all write only textures:
-```
-WTexture1D, WTexture2D, ...
-```
-
-These types will be reported in the reflection API with `access=SLANG_RESOURCE_ACCESS_WRITE`.
-
-Write-only textures support `GetDimension` and `Store(coord, value)` methods. `Load` or `subscript` is not defined for write-only texture types,
-so the user cannot write code that reads from a write-only texture.
-
-Write only textures are supported on all targets. For traditional HLSL, GLSL, SPIRV and CUDA targets, they are translated
-exactly the same as `RW` textures. For Metal, they map to `access::write`, and for WGSL, they map to `texture_storage_X<format, write>`.