purge: remove discord integration

[thelostone-mc]

Description

removes discord integration

Testing

• bounty flow
• hackathon bounty flow

[codecov]

Codecov Report

Merging #6475 into master will increase coverage by 0.06%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #6475      +/-   ##
==========================================
+ Coverage   27.18%   27.25%   +0.06%     
==========================================
  Files         289      289              
  Lines       26464    26383      -81     
  Branches     3923     3910      -13     
==========================================
- Hits         7194     7190       -4     
+ Misses      19003    18926      -77     
  Partials      267      267              

Impacted Files	Coverage Δ
app/app/urls.py	86.44% <ø> (ø)
app/dashboard/context/hackathon.py	0.00% <ø> (ø)
app/dashboard/export.py	60.36% <ø> (ø)
app/dashboard/helpers.py	14.19% <ø> (+0.03%)	⬆️
app/dashboard/models.py	49.57% <ø> (+0.05%)	⬆️
app/dashboard/notifications.py	17.15% <ø> (+0.51%)	⬆️
app/dashboard/tasks.py	38.88% <ø> (+0.55%)	⬆️
app/dashboard/views.py	11.28% <ø> (+0.03%)	⬆️
app/marketing/views.py	12.01% <100.00%> (+0.40%)	⬆️
app/dashboard/embed.py	31.60% <0.00%> (+3.44%)	⬆️

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[octavioamu]

Im ok with this but @danlipert told about fields removals the other day and kind of make sense, anyway guys I let to you decide on this removal or not.

[thelostone-mc]

we've got the data backed up!
And we are shutting down the discord server this week !