refactor: drop unneeded WLR_VERSION macros

[deepin-wm]

WM-528

Summary

waylib and treeland only support a pinned wlroots version (0.20), and the CMake WLROOTS_VERSION sanity check already covers that. The WLR_VERSION macros in the generated wconfig.h had no remaining consumers, so they are removed:

• waylib/src/server/cmake/wconfig.h.in: drop WLR_VERSION / WLR_VERSION_MAJOR/MINOR/PATCH; keep the WLR_HAVE_* feature macros still used by wglobal.h etc.
• waylib/src/server/CMakeLists.txt: drop the three pkg_get_variable(WLR_VERSION_*) lines; WLROOTS_VERSION stays for the wlroots CMake export sanity check.
• waylib/src/server/kernel/wglobal.h: drop the always-true WLR_VERSION_MINOR > 16 condition from ENABLE_VULKAN_RENDER (wlroots is pinned to 0.20).

Test recommendations

1. Configure and build treeland (cmake --preset=default + build): the generated wconfig.h contains no WLR_VERSION macros
2. Build waylib standalone against waylib-wlroots.pc: WLR_HAVE_* feature macros stay intact
3. Verify the Vulkan rendering path (ENABLE_VULKAN_RENDER) still compiles and enables with wlroots 0.20

Summary by Sourcery

Remove unused wlroots version macros and rely on the pinned wlroots version for Vulkan rendering support.

Enhancements:

• Remove obsolete wlroots version metadata and simplify Vulkan rendering feature detection for the pinned wlroots release.

Build:

• Stop exporting and consuming unused wlroots major, minor, and patch version variables while retaining the wlroots version sanity check and feature metadata.

[deepin-ci-robot]

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[deepin-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: deepin-wm

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Details

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[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

This refactor removes unused wlroots version-component metadata from generated configuration and standalone CMake setup, while preserving feature macros and the WLROOTS_VERSION sanity check. Vulkan rendering now depends only on wlroots Vulkan support and Qt Vulkan availability, consistent with the pinned wlroots 0.20 dependency.

Flow diagram for simplified Vulkan render capability detection

flowchart LR
    W[WLR_HAVE_VULKAN_RENDERER] --> C{Qt Vulkan enabled}
    Q["QT_CONFIG(vulkan)"] --> C
    C -->|yes| E[ENABLE_VULKAN_RENDER]
    C -->|no| D[Vulkan rendering disabled]

Loading

File-Level Changes

Change	Details	Files
Remove obsolete wlroots version metadata while retaining feature detection and the pinned-version sanity check.	Stop reading wlroots major, minor, and patch values from the installed pkg-config metadata. Keep WLROOTS_VERSION validation and WLR_HAVE_* feature propagation for standalone builds. Remove generated WLR_VERSION macros from the configuration header template.	waylib/src/server/CMakeLists.txt waylib/src/server/cmake/wconfig.h.in
Simplify Vulkan renderer enablement to rely on supported feature detection and the pinned wlroots release.	Enable Vulkan rendering when wlroots advertises Vulkan support and Qt Vulkan is available. Remove the redundant minor-version threshold condition.	waylib/src/server/kernel/wglobal.h

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