refactor: remove unneeed constructors from DisplayInvalidExecption

src/lib/deskflow/DisplayInvalidException.h

@@ -11,14 +11,11 @@
 
 class DisplayInvalidException : public std::runtime_error
 {
+#ifdef __APPLE__
 public:
-  explicit DisplayInvalidException(const char *msg) : std::runtime_error(msg)
-  {
-    // do nothing
-  }
-
   explicit DisplayInvalidException(const std::string &msg) : std::runtime_error(msg)
   {
     // do nothing
   }
+#endif
 };