os: allow the mac-address-as-hostname parsing to happen everywhere

src/os/hostname.zig

@@ -46,10 +46,6 @@ fn isValidMacAddress(mac_address: []const u8) bool {
 /// correctly.
 pub fn parseUrl(url: []const u8) UrlParsingError!std.Uri {
     return std.Uri.parse(url) catch |e| {
-        // The mac-address-as-hostname issue is specific to macOS so we just return an error if we
-        // hit it on other platforms.
-        if (comptime builtin.os.tag != .macos) return e;
-
         // It's possible this is a mac address on macOS where the last 2 characters in the
         // address are non-digits, e.g. 'ff', and thus an invalid port.
         //
@@ -282,7 +278,6 @@ test parseUrl {
     try std.testing.expect(uri.port == 12);
 
     // Alphabetical mac addresses.
-
     uri = try parseUrl("file://ab:cd:ef:ab:cd:ef/home/test/");
 
     try std.testing.expectEqualStrings("file", uri.scheme);