Update Dockerfile

Dockerfile

@@ -1,13 +1,6 @@
 FROM python:3
 WORKDIR /usr/src/app
 COPY requirements.txt ./
-RUN python -m pip install --upgrade pip setuptools wheel
-RUN git clone --recurse-submodules https://github.com/arvidn/libtorrent.git
-RUN cd libtorrent
-RUN apt-get install libboost-all-dev
-RUN echo "using gcc ;" >>~/user-config.jam
-RUN b2 crypto=openssl cxxstd=14 release
-RUN apt-get install -y ffmpeg 
 RUN pip install -r requirements.txt
 COPY . .
 EXPOSE 7860