Remove npm remnants (#882)

* create an Annotation map of the right size to avoid resizing

* removes all references to deprecated nodepool manager

images/fnnpm/Dockerfile

@@ -1,14 +0,0 @@
-# build stage
-FROM golang:1.10-alpine AS build-env
-RUN apk --no-cache add build-base git bzr mercurial gcc
-ENV D=/go/src/github.com/fnproject/fn
-ADD . $D
-RUN cd $D/poolmanager/server && go build -o fnnpm && cp fnnpm /tmp/
-
-# final stage: the local fnproject/dind:latest will be either built afresh or
-# whatever is the latest from master, depending on whether we're releasing
-# a newer cut.
-FROM alpine:latest
-WORKDIR /app
-COPY --from=build-env /tmp/fnnpm /app/fnnpm
-CMD ["./fnnpm"]