Fix AC power supply detection on Linux
The /sys/class/power_supply/*/present file usually does not exist for AC power supplies.
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20256b7c04
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@ -858,19 +858,6 @@ namespace cryptonote
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const boost::filesystem::path& power_supply_path = iter->path();
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if (boost::filesystem::is_directory(power_supply_path))
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{
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std::ifstream power_supply_present_stream((power_supply_path / "present").string());
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if (power_supply_present_stream.fail())
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{
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LOG_PRINT_L0("Unable to read from " << power_supply_path << " to check if power supply present");
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continue;
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}
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if (power_supply_present_stream.get() != '1')
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{
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LOG_PRINT_L4("Power supply not present at " << power_supply_path);
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continue;
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}
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boost::filesystem::path power_supply_type_path = power_supply_path / "type";
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if (boost::filesystem::is_regular_file(power_supply_type_path))
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{
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