Remove x scanning for string settings.

This allows SSIDs and PWs to start with the letter 'x'.

Author: nseidle

Firmware/RTK_Surveyor/support.ino

@@ -233,7 +233,6 @@ double getDouble(int numberOfSeconds)
 
 //Reads a line until the \n enter character is found
 //Returns STATUS_GETBYTE_TIMEOUT if input times out
-//Returns STATUS_PRESSED_X if user presses 'x'
 byte readLine(char* buffer, byte bufferLength, int numberOfSeconds)
 {
   byte readLength = 0;
@@ -291,10 +290,6 @@ byte readLine(char* buffer, byte bufferLength, int numberOfSeconds)
       buffer[readLength] = '\0';
       break;
     }
-    else if (readLength == 0 && incoming == 'x')
-    {
-      return (STATUS_PRESSED_X);
-    }
     else
     {
       buffer[readLength] = incoming;