qemu: revert "Restrict pessimization of M4 arch to macOS 15.2"

This commit reverts the substantial part of PR 3197.

SME got broken again after upgrading QEMU from 9.2.0 to 9.2.1 (Homebrew bottle).
Possibly this regression happened in some build process rather than in QEMU itself?

See issue 3226.

Signed-off-by: Akihiro Suda <[email protected]>

Author: AkihiroSuda

Diff for: pkg/limayaml/defaults.go

@@ -1203,16 +1203,19 @@ func HasHostCPU() bool {
 	switch runtime.GOOS {
 	case "darwin":
 		if hasSMEDarwin() {
-			macOSProductVersion, err := osutil.ProductVersion()
-			if err != nil || (macOSProductVersion.Major == 15 && macOSProductVersion.Minor == 2) {
-				// SME is available since Apple M4 running macOS 15.2, but it was broken on macOS 15.2.
-				// It has been fixed in 15.3.
-				//
-				// https://github.com/lima-vm/lima/issues/3032
-				// https://gitlab.com/qemu-project/qemu/-/issues/2665
-				// https://gitlab.com/qemu-project/qemu/-/issues/2721
-				return false
-			}
+			// [2025-02-05]
+			// SME is available since Apple M4 running macOS 15.2, but it was broken on macOS 15.2.
+			// It has been fixed in 15.3.
+			//
+			// https://github.com/lima-vm/lima/issues/3032
+			// https://gitlab.com/qemu-project/qemu/-/issues/2665
+			// https://gitlab.com/qemu-project/qemu/-/issues/2721
+
+			// [2025-02-12]
+			// SME got broken again after upgrading QEMU from 9.2.0 to 9.2.1 (Homebrew bottle).
+			// Possibly this regression happened in some build process rather than in QEMU itself?
+			// https://github.com/lima-vm/lima/issues/3226
+			return false
 		}
 		return true
 	case "linux":