Remove unused variable in test

[johnthagen]

Fixes GitHub Actions warning: https://github.com/sillsdev/TheCombine/actions/runs/285286292

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This change is 

[codecov-commenter]

Codecov Report

Merging #747 into master will increase coverage by 0.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #747      +/-   ##
==========================================
+ Coverage   50.31%   50.33%   +0.01%     
==========================================
  Files         235      235              
  Lines        6169     6169              
  Branches      398      398              
==========================================
+ Hits         3104     3105       +1     
  Misses       2772     2772              
+ Partials      293      292       -1     

Flag	Coverage Δ
#backend	53.06% <ø> (ø)
#frontend	47.82% <ø> (+0.03%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
.../MergeDupGoal/MergeDupStep/MergeDupStepReducer.tsx	54.05% <0.00%> (+1.35%)	⬆️

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[imnasnainaec]

Reviewed 1 of 1 files at r1.
Reviewable status: 0 of 2 files reviewed, all discussions resolved (waiting on @imnasnainaec)

[imnasnainaec]

src/components/PasswordReset/tests/ResetPage.test.tsx, line 19 at r2 (raw file):

        <PasswordReset resetState={0} passwordReset={jest.fn()} />

PasswordReset still gives a Typescript warning because it is missing the properties of RouteComponentProps

[imnasnainaec]

<PasswordReset resetState={0} passwordReset={jest.fn()} />

PasswordReset still gives a Typescript warning because it is missing the properties of RouteComponentProps

I tried to resolve that using withRouter in a number of ways, but kept hitting dead ends, so I'm content to leave it for now.

[jasonleenaylor]

Reviewed 2 of 2 files at r2.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @johnthagen)

[codecov-io]

Codecov Report

Merging #747 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #747   +/-   ##
=======================================
  Coverage   49.95%   49.95%           
=======================================
  Files         235      235           
  Lines        6158     6158           
  Branches      398      398           
=======================================
  Hits         3076     3076           
  Misses       2788     2788           
  Partials      294      294           

Flag	Coverage Δ
#backend	53.06% <ø> (ø)
#frontend	47.08% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...c/components/PasswordReset/ResetPage/component.tsx	42.85% <ø> (ø)

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