Update dockerfile

Signed-off-by: Marcus Noble <github@marcusnoble.co.uk>

Dockerfile

@@ -5,9 +5,4 @@ ADD go.mod go.sum ./
 RUN go mod download
 ADD . .
 RUN GOOS=linux GOARCH=amd64 CGO_ENABLED=0 go build -ldflags="-w -s" -o next-book .
-
-FROM scratch
-WORKDIR /app/
-COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
-COPY --from=builder /app/next-book /app/next-book
 ENTRYPOINT ["/app/next-book"]