Revert making adfruit_esp32spi a dependency

Author: tekktrik

requirements.txt

@@ -7,7 +7,6 @@ Adafruit-Blinka
 adafruit-blinka-displayio
 adafruit-circuitpython-bitmap-font
 adafruit-circuitpython-display-text
-adafruit-circuitpython-esp32spi
 adafruit-circuitpython-neopixel
 adafruit-circuitpython-requests
 adafruit-circuitpython-adafruitio

setup.py

@@ -39,7 +39,6 @@
         "adafruit-blinka-displayio",
         "adafruit-circuitpython-bitmap-font",
         "adafruit-circuitpython-display-text",
-        "adafruit-circuitpython-esp32spi",
         "adafruit-circuitpython-neopixel",
         "adafruit-circuitpython-requests",
         "adafruit-circuitpython-adafruitio",