Help removing block in file please.

[ZillaYT]

I have a file with the following bock of text in it. I have text before and after the text block.

logstash:
  hash: $fj;kdjjfajf;ajKFJ;dfj;dkfja;dfjFJ:LFJj;kj;lfkajs
  #password is: some_pw

I'm trying to remove the block using this code:

- name: Delete existing logstash user
  blockinfile:
    dest: /path_to_file/foo.yml
    state: absent
    block: |
      logstash:
        hash: $fj;kdjjfajf;ajKFJ;dfj;dkfja;dfjFJ:LFJj;kj;lfkajs
        #password is: some_pw

But the block persists. What am i missing? Thanks.

[Tom Paine]

Did you ever figure this out?