remove caio workaronud

aio / caio does not seem used anywhere in k-space domain

multiple apps deployed with changes, no effects noted

Dockerfile

@@ -16,13 +16,6 @@ RUN apk add --no-cache gcc make musl-dev linux-headers git \
       sanic-wtf \
       ecs-logging
 
-# Work around buggy setup.py in caio
-RUN git clone https://github.com/mosquito/caio/ \
-  && cd caio \
-  && python3 setup.py bdist_wheel \
-  && rm /wheels/*caio*.whl \
-  && cp dist/*.whl /wheels/
-
 # Generate image without build dependencies
 FROM python:alpine
 COPY --from=build /wheels /wheels
@@ -31,4 +24,3 @@ LABEL name="k-space/microservice-base" \
       version="rc" \
       maintainer="Lauri Võsandi <lauri@k-space.ee>"
 ENV PYTHONUNBUFFERED=1
-ENV CAIO_IMPL=linux