Remove stale patch for SDK v1.1 and earlier (#8858)

rts_reg address referenced was not valid for SDK v2.0.0 and up.
rts_reg[30] = 0; cleared storaged used to set TestStaFreqCalValInput.

Author: mhightower83

cores/esp8266/core_esp8266_phy.cpp

@@ -360,10 +360,7 @@ void user_rf_pre_init()
 {
     // *((volatile uint32_t*) 0x60000710) = 0;
     spoof_init_data = false;
-    volatile uint32_t* rtc_reg = (volatile uint32_t*) 0x60001000;
-    rtc_reg[30] = 0;
 
-    system_set_os_print(0);
     int rf_mode = __get_rf_mode();
     if (rf_mode >= 0) {
         system_phy_set_rfoption(rf_mode);