Remove references to cc3000

Author: jwcooper

README.md

@@ -1,7 +1,7 @@
 # Adafruit MQTT Library [![Build Status](https://travis-ci.org/adafruit/Adafruit_MQTT_Library.svg?branch=master)](https://travis-ci.org/adafruit/Adafruit_MQTT_Library)
 
 Arduino library for MQTT support, including access to Adafruit IO.  Works with
-the Adafruit CC3000, FONA, Arduino Yun, ESP8266 Arduino platforms, and anything that supports
+the Adafruit FONA, Arduino Yun, ESP8266 Arduino platforms, and anything that supports
 Arduino's Client interface (like Ethernet shield).
 
 See included examples for how to use the library to access an MQTT service to
@@ -11,10 +11,7 @@ spec but is intended to support enough for QoS 0 and 1 publishing.
 Depends on the following other libraries depending on the target platform:
 
    - [Adafruit SleepyDog](https://github.com/adafruit/Adafruit_SleepyDog), watchdog
-   library used by FONA and CC3000 code for reliability.
-
-   - [Adafruit CC3000](https://github.com/adafruit/Adafruit_CC3000_Library), required
-   for the CC3000 hardware.
+   library used by FONA code for reliability.
 
    - [Adafruit FONA](https://github.com/adafruit/Adafruit_FONA_Library), required for
    the FONA hardware.