Remove opt0 in downstream tests

[codecov[bot]]

Codecov Report

Patch coverage: 68.75% and project coverage change: -44.46% :warning:

Comparison is base (4f33475) 71.88% compared to head (623bc88) 27.42%. Report is 16 commits behind head on master.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #528 +/- ## =========================================== - Coverage 71.88% 27.42% -44.46% =========================================== Files 81 80 -1 Lines 8546 8362 -184 =========================================== - Hits 6143 2293 -3850 - Misses 2403 6069 +3666 ``` | [Files Changed](https://app.codecov.io/gh/JuliaApproximation/ApproxFunBase.jl/pull/528?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=JuliaApproximation) | Coverage Δ | | |---|---|---| | [src/ApproxFunBase.jl](https://app.codecov.io/gh/JuliaApproximation/ApproxFunBase.jl/pull/528?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=JuliaApproximation#diff-c3JjL0FwcHJveEZ1bkJhc2Uuamw=) | `44.00% <ø> (-40.00%)` | :arrow_down: | | [src/Operators/SubOperator.jl](https://app.codecov.io/gh/JuliaApproximation/ApproxFunBase.jl/pull/528?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=JuliaApproximation#diff-c3JjL09wZXJhdG9ycy9TdWJPcGVyYXRvci5qbA==) | `42.64% <0.00%> (-41.18%)` | :arrow_down: | | [src/Operators/banded/CalculusOperator.jl](https://app.codecov.io/gh/JuliaApproximation/ApproxFunBase.jl/pull/528?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=JuliaApproximation#diff-c3JjL09wZXJhdG9ycy9iYW5kZWQvQ2FsY3VsdXNPcGVyYXRvci5qbA==) | `17.35% <0.00%> (-58.46%)` | :arrow_down: | | [src/Operators/banded/Conversion.jl](https://app.codecov.io/gh/JuliaApproximation/ApproxFunBase.jl/pull/528?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=JuliaApproximation#diff-c3JjL09wZXJhdG9ycy9iYW5kZWQvQ29udmVyc2lvbi5qbA==) | `22.95% <0.00%> (-63.49%)` | :arrow_down: | | [src/Spaces/ProductSpaceOperators.jl](https://app.codecov.io/gh/JuliaApproximation/ApproxFunBase.jl/pull/528?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=JuliaApproximation#diff-c3JjL1NwYWNlcy9Qcm9kdWN0U3BhY2VPcGVyYXRvcnMuamw=) | `0.00% <0.00%> (-65.37%)` | :arrow_down: | | [src/eigen.jl](https://app.codecov.io/gh/JuliaApproximation/ApproxFunBase.jl/pull/528?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=JuliaApproximation#diff-c3JjL2VpZ2VuLmps) | `0.00% <0.00%> (-96.43%)` | :arrow_down: | | [src/Fun.jl](https://app.codecov.io/gh/JuliaApproximation/ApproxFunBase.jl/pull/528?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=JuliaApproximation#diff-c3JjL0Z1bi5qbA==) | `36.17% <50.00%> (-31.62%)` | :arrow_down: | | [src/Operators/general/InterlaceOperator.jl](https://app.codecov.io/gh/JuliaApproximation/ApproxFunBase.jl/pull/528?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=JuliaApproximation#diff-c3JjL09wZXJhdG9ycy9nZW5lcmFsL0ludGVybGFjZU9wZXJhdG9yLmps) | `23.46% <66.66%> (-57.87%)` | :arrow_down: | | [src/LinearAlgebra/helper.jl](https://app.codecov.io/gh/JuliaApproximation/ApproxFunBase.jl/pull/528?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=JuliaApproximation#diff-c3JjL0xpbmVhckFsZ2VicmEvaGVscGVyLmps) | `55.58% <100.00%> (-13.35%)` | :arrow_down: | | [src/Multivariate/TensorSpace.jl](https://app.codecov.io/gh/JuliaApproximation/ApproxFunBase.jl/pull/528?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=JuliaApproximation#diff-c3JjL011bHRpdmFyaWF0ZS9UZW5zb3JTcGFjZS5qbA==) | `39.83% <100.00%> (-45.34%)` | :arrow_down: | | ... and [3 more](https://app.codecov.io/gh/JuliaApproximation/ApproxFunBase.jl/pull/528?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=JuliaApproximation) | | ... and [59 files with indirect coverage changes](https://app.codecov.io/gh/JuliaApproximation/ApproxFunBase.jl/pull/528/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=JuliaApproximation)

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