Removed extea error statement

Author: cmonr

mbed/mbed_terminal.py

@@ -42,7 +42,6 @@ def __init__(self, port, baudrate=9600, echo=True, timeout=10):
             self.serial.flush()
             self.serial.reset_input_buffer()
         except Exception as e:
-            print('error')
             self.serial = None
             return False