Fix adafruit#380 [-Wunused-variable]

Author: henrygab

libraries/Bluefruit52Lib/examples/Central/central_ti_sensortag_optical/central_ti_sensortag_optical.ino

@@ -167,9 +167,6 @@ void connect_callback(uint16_t conn_handle)
   Serial.print("Connect Callback, conn_handle: "); 
   Serial.println( conn_handle );
 
-  /* Complete Local Name */
-  uint8_t buffer[BLE_GAP_ADV_SET_DATA_SIZE_MAX] = { 0 };
-  
   // If Service is not found, disconnect and return
   Serial.print("Discovering Optical Service ... ");
   if ( !sensorTagOpticalService.discover(conn_handle) )