device_ledger: remove full_name variable

This variable was never set, resulting in the
device name always showing as "disconnected".

src/device/device_ledger.cpp

@@ -322,7 +322,7 @@ namespace hw {
     }
 
     const std::string device_ledger::get_name() const {
-      if (this->full_name.empty() || !this->connected()) {
+      if (!this->connected()) {
         return std::string("<disconnected:").append(this->name).append(">");
       }
       return this->name;

src/device/device_ledger.hpp

@@ -85,7 +85,6 @@ namespace hw {
 
         //IO
         hw::io::device_io_hid hw_device;
-        std::string   full_name;        
         unsigned int  length_send;
         unsigned char buffer_send[BUFFER_SEND_SIZE];
         unsigned int  length_recv;