AP_Common c++ lib: eliminate freeMemory and displayMemory

* also, no more error message in pure virtual call

libraries/AP_Common/c++.cpp

@@ -11,19 +11,8 @@
 #include <stdint.h>
 #include "c++.h"
 
-#ifndef EXCLUDECORE
-#if defined(ARDUINO) && ARDUINO >= 100
- #include "Arduino.h"
-#else
- #include "WProgram.h"
-#endif
-#endif
-
 void * operator new(size_t size)
 {
-#ifdef AP_DISPLAYMEM
-    displayMemory();
-#endif
     return(calloc(size, 1));
 }
 
@@ -32,22 +21,12 @@ void operator delete(void *p)
     if (p) free(p);
 }
 
-extern "C" void __cxa_pure_virtual()
-{
-    while (1)
-    {
-#ifndef EXCLUDECORE
-        Serial.println("Error: pure virtual call");
-        delay(1000);
-#endif
-    }
+extern "C" void __cxa_pure_virtual(){
+    while (1){}
 }
 
 void * operator new[](size_t size)
 {
-#ifdef AP_DISPLAYMEM
-    displayMemory();
-#endif
     return(calloc(size, 1));
 }
 
@@ -63,38 +42,10 @@ int __cxa_guard_acquire(__guard *g)
     return !*(char *)(g);
 };
 
-void __cxa_guard_release (__guard *g)
-{
+void __cxa_guard_release (__guard *g){
     *(char *)g = 1;
 };
 
 void __cxa_guard_abort (__guard *) {
 };
 
-// free memory
-extern unsigned int __bss_end;
-extern void *__brkval;
-
-void displayMemory()
-{
-    static int minMemFree=0;
-    if (minMemFree<=0 || freeMemory()<minMemFree) {
-        minMemFree = freeMemory();
-#ifndef EXCLUDECORE
-        Serial.print("bytes free: ");
-        Serial.println(minMemFree);
-#endif
-    }
-}
-
-int freeMemory()
-{
-    int free_memory;
-
-    if ((intptr_t)__brkval == 0)
-        free_memory = ((intptr_t)&free_memory) - ((intptr_t)&__bss_end);
-    else
-        free_memory = ((intptr_t)&free_memory) - ((intptr_t)__brkval);
-
-    return free_memory;
-}

libraries/AP_Common/c++.h

@@ -1,7 +0,0 @@
-#ifndef CPP_H
-#define CPP_H
-
-void        displayMemory();
-int         freeMemory();
-
-#endif