* Author(s): cefn
 """
-import os
-
 try:
     import threading
 except ImportError:
             self._i2c = _I2C(frequency=frequency)
             return
         if detector.board.microchip_mcp2221:
-            if (
-                "BLINKA_FORCECHIP" in os.environ
-                and os.environ["BLINKA_FORCEBOARD"] == "MICROCHIP_MCP2221"
-            ):
-                from adafruit_blinka.microcontroller.fake_mcp2221.i2c import I2C as _I2C
-            else:
-                from adafruit_blinka.microcontroller.mcp2221.i2c import I2C as _I2C
+            from adafruit_blinka.microcontroller.mcp2221.i2c import I2C as _I2C
+
             self._i2c = _I2C(frequency=frequency)
             return
         if detector.board.greatfet_one: