Merge pull request #47 from adafruit/dhalbert-ustruct

Remove obsolete reference to ustruct

Author: TheKitty

adafruit_bme680.py

@@ -28,16 +28,11 @@
 * Adafruit's Bus Device library: https://github.com/adafruit/Adafruit_CircuitPython_BusDevice
 """
 
-
+import struct
 import time
 import math
 from micropython import const
 
-try:
-    import struct
-except ImportError:
-    import ustruct as struct
-
 __version__ = "0.0.0-auto.0"
 __repo__ = "https://github.com/adafruit/Adafruit_CircuitPython_BME680.git"