[clang] [clang] [test] Skip a test that sets PATH= on Windows (PR #95096)

[Fangrui Song via cfe-commits]

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@@ -77,13 +77,3 @@
 
 // XTOR: {{llvm-spirv.*"}}
 // BACKEND-NOT: {{llvm-spirv.*"}}
-
-//-----------------------------------------------------------------------------
-// Check llvm-spirv-<LLVM_VERSION_MAJOR> is used if it is found in PATH.
-// RUN: mkdir -p %t/versioned
-// RUN: touch %t/versioned/llvm-spirv-%llvm-version-major \
-// RUN:   && chmod +x %t/versioned/llvm-spirv-%llvm-version-major
-// RUN: env "PATH=%t/versioned" %clang -### --target=spirv64 -x cl -c %s 2>&1 \
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MaskRay wrote:

Instead of creating a file, consider `%if !system-windows` 

https://github.com/llvm/llvm-project/pull/95096