delete garbage collection not needed for 4.x

Author: TheKitty

Cirecuit_Playground_Express_Pinata/code.py

@@ -1,13 +1,11 @@
 # Circuit Playground Express Piñata by Dano Wall for Adafruit Industries
 # CircuitPython code by Mike Barela for Adafruit Industries, MIT License
 import time
-import gc
 import random
 import board
 import pulseio
 from adafruit_motor import servo
 from adafruit_circuitplayground.express import cpx
-gc.collect()
 
 # create a PWMOut object on CPX Pin A1
 pwm = pulseio.PWMOut(board.A1, frequency=50)