Revert "Add a Dockerfile for buliding the docs"

This reverts commit f97d0d9e43.

docs/Dockerfile

@@ -1,13 +0,0 @@
-FROM python:3-alpine
-
-RUN apk add --no-cache git
-
-COPY docs/requirements.txt requirements.txt
-RUN pip install -r /requirements.txt \
- && mkdir /src
-
-WORKDIR /src
-COPY .git /src/.git
-
-RUN sphinx-versioning build -b -B 1.5 -r 1.5 -w '^[0-9.]*$' -w master -W '^$' /src /build
-

docs/requirements.txt

@@ -3,3 +3,4 @@ Sphinx
 sphinx-autobuild
 sphinx-rtd-theme
 sphinxcontrib-versioning
+paramiko