chore: delete duplicate nginx.conf injection

Author: DPS0340

Dockerfile

@@ -10,6 +10,4 @@ RUN yarn build
 
 FROM nginx:1.23.1-alpine
 COPY --from=build /app/dist /usr/share/nginx/html
-RUN rm /etc/nginx/conf.d/default.conf
-COPY nginx/nginx.conf /etc/nginx/conf.d
 EXPOSE 80