remove duplicate function

[thelostone-mc]

Description

• Fixes advanced payout
• Function is already declared in shared.js https://github.com/gitcoinco/web/blob/master/app/assets/v2/js/shared.js#L1350-L1352 causing advanced payout to fail

[danlipert]

@owocki the change on stable to the rounding function caused advanced payout to fail - this PR fixes it

[codecov]

Codecov Report

Merging #4923 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #4923   +/-   ##
=======================================
  Coverage   30.63%   30.63%           
=======================================
  Files         216      216           
  Lines       17491    17491           
  Branches     2386     2386           
=======================================
  Hits         5359     5359           
- Misses      11916    11917    +1     
+ Partials      216      215    -1

Impacted Files	Coverage Δ
app/dashboard/views.py	14.19% <0%> (ø)	⬆️

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[owocki]

thanks good catch