comment out __FlashStringHelper methods in Print

cores/esp32/Print.cpp

@@ -128,14 +128,14 @@ size_t Print::print(double n, int digits)
 {
     return printFloat(n, digits);
 }
-
+/*
 size_t Print::println(const __FlashStringHelper *ifsh)
 {
     size_t n = print(ifsh);
     n += println();
     return n;
 }
-
+*/
 size_t Print::print(const Printable& x)
 {
     return x.printTo(*this);