Delete cgo extensions.

ClashX/Extensions/Cgo+Convert.swift

@@ -16,27 +16,3 @@ extension String {
         return UnsafeMutablePointer(mutating: p)
     }
 }
-
-extension UnsafeMutablePointer where Pointee == Int8 {
-    func toString() -> String {
-        let string = String(cString: self)
-        deallocate()
-        return string
-    }
-
-    func toData() -> Data {
-        return toString().data(using: .utf8) ?? Data()
-    }
-}
-
-extension Bool {
-    func goObject() -> GoUint8 {
-        return self == true ? 1 : 0
-    }
-}
-
-extension GoUint8 {
-    func toBool() -> Bool {
-        return self == 1
-    }
-}