tests/cpydiff: Remove types_str_decodeerror now that it succeeds.
tests/cpydiff: Remove types_str_decodeerror now that it succeeds.

Commit 68c28174d0e0ec3f6b1461aea3a0b6a1b84610bb implemented checking for
valid utf-8 data.

swegener/micropython,ryannathans/micropython,adafruit/micropython,pfalcon/micropython,pozetroninc/micropython,henriknelson/micropython,adafruit/circuitpython,tobbad/micropython,bvernoux/micropython,pfalcon/micropython,swegener/micropython,selste/micropython,kerneltask/micropython,pfalcon/micropython,pramasoul/micropython,adafruit/micropython,adafruit/micropython,selste/micropython,tralamazza/micropython,kerneltask/micropython,tobbad/micropython,tobbad/micropython,dmazzella/micropython,swegener/micropython,ryannathans/micropython,ryannathans/micropython,bvernoux/micropython,henriknelson/micropython,pramasoul/micropython,trezor/micropython,bvernoux/micropython,henriknelson/micropython,dmazzella/micropython,bvernoux/micropython,ryannathans/micropython,adafruit/micropython,tralamazza/micropython,pfalcon/micropython,pozetroninc/micropython,tobbad/micropython,MrSurly/micropython,swegener/micropython,henriknelson/micropython,MrSurly/micropython,pfalcon/micropython,adafruit/circuitpython,adafruit/circuitpython,kerneltask/micropython,swegener/micropython,MrSurly/micropython,pozetroninc/micropython,ryannathans/micropython,bvernoux/micropython,henriknelson/micropython,selste/micropython,pozetroninc/micropython,selste/micropython,trezor/micropython,tobbad/micropython,adafruit/micropython,trezor/micropython,tralamazza/micropython,MrSurly/micropython,trezor/micropython,tralamazza/micropython,pramasoul/micropython,adafruit/circuitpython,selste/micropython,dmazzella/micropython,adafruit/circuitpython,pramasoul/micropython,kerneltask/micropython,pramasoul/micropython,pozetroninc/micropython,trezor/micropython,MrSurly/micropython,dmazzella/micropython,adafruit/circuitpython,kerneltask/micropython