Fixed code duplication error

-- lines 186 & 188: appear duplicated
-- lines 203 and 206 appear duplicated

Reported by @anthem400 - Thx!

Author: lathoub

src/BLEMIDI_Transport.h

@@ -183,7 +183,6 @@ class BLEMIDI_Transport
 public:
     // callbacks
     void (*_connectedCallback)() = nullptr;
-    void (*_connectedCallbackDeviceName)(char *) = nullptr;
     void (*_disconnectedCallback)() = nullptr;
     void (*_connectedCallbackDeviceName)(char *) = nullptr;
 
@@ -200,12 +199,6 @@ class BLEMIDI_Transport
         return *this;
     }
 
-    BLEMIDI_Transport &setHandleConnected(void (*fptr)(char*))
-    {
-        _connectedCallbackDeviceName= fptr;
-        return *this;
-    }
-
     BLEMIDI_Transport &setHandleConnected(void (*fptr)(char*))
     {
         _connectedCallbackDeviceName= fptr;