wifi: avoid unnecessary using to inherit constructors

src/wifi/test/spectrum-wifi-phy-test.cc

@@ -56,7 +56,6 @@ static const uint16_t GUARD_WIDTH =
 class ExtSpectrumWifiPhy : public SpectrumWifiPhy
 {
   public:
-    using SpectrumWifiPhy::SpectrumWifiPhy;
     using WifiPhy::GetBand;
 };
 

src/wifi/test/wifi-error-rate-models-test.cc

@@ -404,7 +404,6 @@ class TestInterferenceHelper : public InterferenceHelper
   public:
     using InterferenceHelper::CalculatePayloadChunkSuccessRate;
     using InterferenceHelper::CalculateSnr;
-    using InterferenceHelper::InterferenceHelper;
 };
 
 /**