Remove unused celery task result store

[codecov-commenter]

Codecov Report

Patch coverage has no change and project coverage change: +0.06 :tada:

Comparison is base (904626e) 73.41% compared to head (7dc5614) 73.48%.

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Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #375 +/- ## ========================================== + Coverage 73.41% 73.48% +0.06% ========================================== Files 123 123 Lines 4270 4269 -1 Branches 526 526 ========================================== + Hits 3135 3137 +2 + Misses 999 998 -1 + Partials 136 134 -2 ``` | Flag | Coverage Δ | | |---|---|---| | unittests | `73.45% <0.00%> (+0.06%)` | :arrow_up: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=wooey#carryforward-flags-in-the-pull-request-comment) to find out more. | [Impacted Files](https://app.codecov.io/gh/wooey/Wooey/pull/375?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=wooey) | Coverage Δ | | |---|---|---| | [...ey/conf/project\_template/settings/user\_settings.py](https://app.codecov.io/gh/wooey/Wooey/pull/375?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=wooey#diff-d29vZXkvY29uZi9wcm9qZWN0X3RlbXBsYXRlL3NldHRpbmdzL3VzZXJfc2V0dGluZ3MucHk=) | `0.00% <0.00%> (ø)` | | ... and [1 file with indirect coverage changes](https://app.codecov.io/gh/wooey/Wooey/pull/375/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=wooey)

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