Removes less from docker

Dockerfile

@@ -10,14 +10,10 @@ RUN apk add --no-cache \
     libxml2-utils \
     libxslt \
     make \
-    nodejs \
-    nodejs-npm \
     procps \
     python3 \
     rsync
 
-RUN npm install -g less
-
 RUN mkdir -p /fsfe-local-build/fsfe.org
 
 EXPOSE 8000