Remove unused function pointer definitions

Author: pennam

libraries/Ethernet/src/Ethernet.h

@@ -50,8 +50,6 @@ enum {  // compatibility with Arduino ::maintain()
     DHCP_CHECK_REBIND_OK    = 4
 };
 
-typedef void *(*voidPrtFuncPtr)(void);
-
 class EthernetClass : public MbedSocketClass {
 
 public:

libraries/GPS/src/GPS.h

@@ -25,8 +25,6 @@
 
 namespace arduino {
 
-typedef void* (*voidPrtFuncPtr)(void);
-
 class GPSClass : public HardwareSerial {
 public:
 

libraries/GSM/src/GSM.h

@@ -65,8 +65,6 @@
 
 namespace arduino {
 
-typedef void* (*voidPrtFuncPtr)(void);
-
 class GSMClass : public MbedSocketClass {
 public:
 

libraries/WiFi/src/WiFi.h

@@ -46,8 +46,6 @@ extern "C" {
 
 namespace arduino {
 
-typedef void* (*voidPrtFuncPtr)(void);
-
 class WiFiClass : public MbedSocketClass {
 public:
   static int16_t _state[MAX_SOCK_NUM];