remove welcome bot from boilerplate

[samhita-alla]

Signed-off-by: Samhita Alla [email protected]

TL;DR

This PR removes the welcome bot config from boilerplate cause it's moved to the .github repository.

Type

• Bug Fix
• Feature
• Plugin

Are all requirements met?

• Code completed
• Smoke tested
• Unit tests added
• Code documentation added
• Any pending items have an associated Issue

Complete description

How did you fix the bug, make the feature etc. Link to any design docs etc

Tracking Issue

flyteorg/flyte#1963

Follow-up issue

NA
OR
https://github.com/flyteorg/flyte/issues/

[codecov]

Codecov Report

Merging #337 (4ec617f) into master (89558c4) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #337   +/-   ##
=======================================
  Coverage   69.46%   69.46%           
=======================================
  Files         140      140           
  Lines        4808     4808           
=======================================
  Hits         3340     3340           
  Misses       1228     1228           
  Partials      240      240           

Flag	Coverage Δ
unittests	69.04% <ø> (ø)

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