refactor: remove unneeded nginx.conf modification

the upstream nginx.conf already has "worker_processes  auto;"

Dockerfile.alpine

@@ -21,8 +21,7 @@ RUN apk add --no-cache --virtual .run-deps \
    && update-ca-certificates
 
 # Configure Nginx
-RUN sed -i 's/worker_processes  1/worker_processes  auto/' /etc/nginx/nginx.conf \
-   && sed -i 's/worker_connections  1024/worker_connections  10240/' /etc/nginx/nginx.conf \
+RUN sed -i 's/worker_connections  1024/worker_connections  10240/' /etc/nginx/nginx.conf \
    && mkdir -p '/etc/nginx/dhparam'
 
 # Install Forego + docker-gen

Dockerfile.debian

@@ -20,8 +20,7 @@ RUN apt-get update \
    && rm -r /var/lib/apt/lists/*
 
 # Configure Nginx
-RUN sed -i 's/worker_processes  1/worker_processes  auto/' /etc/nginx/nginx.conf \
-   && sed -i 's/worker_connections  1024/worker_connections  10240/' /etc/nginx/nginx.conf \
+RUN sed -i 's/worker_connections  1024/worker_connections  10240/' /etc/nginx/nginx.conf \
    && mkdir -p '/etc/nginx/dhparam'
 
 # Install Forego + docker-gen