Use abi-to-sol's outputSource: false option (#20)

Instead of manually trimming the output source ABI JSON

Author: gnidan

src/compiler/remoteCompiler.js

@@ -71,8 +71,12 @@ function getRemoteInterfaceFromEtherscan(address, name, chain) {
                     return reject(data)
                 }
                 let abi = JSON.parse(data.result);
-                let src = generateSolidity({ name: name, solidityVersion: "0.8.9", abi });
-                src = src.substring(src.indexOf("\n\n") + 2, src.indexOf("// THIS FILE WAS AUTOGENERATED FROM"));
+                let src = generateSolidity({
+                    name: name,
+                    solidityVersion: "0.8.9",
+                    abi,
+                    outputSource: false
+                });
                 return resolve(src)
             }
         })