Remove unrelated code to support ETH_PHY_JL1101

Author: TD-er

libraries/Ethernet/src/ETH.cpp

@@ -149,9 +149,6 @@ bool ETHClass::begin(eth_phy_type_t type, uint8_t phy_addr, int mdc, int mdio, i
         case ETH_PHY_DP83848:
             phy = esp_eth_phy_new_dp83848(&phy_config);
             break;
-	case ETH_PHY_JL1101:
-            phy = esp_eth_phy_new_jl1101(&phy_config);
-            break;
         case ETH_PHY_KSZ8041:
             phy = esp_eth_phy_new_ksz80xx(&phy_config);
             break;