CLN: Cleanup code in parsers.pyx
# [Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/26386?src=pr&el=h1) Report
> Merging [#26386](https://codecov.io/gh/pandas-dev/pandas/pull/26386?src=pr&el=desc) into [master](https://codecov.io/gh/pandas-dev/pandas/commit/304d8d4bc3b3cde7e2b463426bf484701df142cd?src=pr&el=desc) will **not change** coverage.
> The diff coverage is `n/a`.

[![Impacted file tree graph](https://codecov.io/gh/pandas-dev/pandas/pull/26386/graphs/tree.svg?width=650&token=eZ4WkYLtcO&height=150&src=pr)](https://codecov.io/gh/pandas-dev/pandas/pull/26386?src=pr&el=tree)

```diff
@@           Coverage Diff           @@
##           master   #26386   +/-   ##
=======================================
  Coverage   91.68%   91.68%           
=======================================
  Files         174      174           
  Lines       50704    50704           
=======================================
  Hits        46488    46488           
  Misses       4216     4216
```

| Flag | Coverage Δ | |
|---|---|---|
| #multiple | `90.18% <ø> (ø)` | :arrow_up: |
| #single | `41.33% <ø> (ø)` | :arrow_up: |


------

[Continue to review full report at Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/26386?src=pr&el=continue).
> **Legend** - [Click here to learn more](https://docs.codecov.io/docs/codecov-delta)
> `Δ = absolute <relative> (impact)`, `ø = not affected`, `? = missing data`
> Powered by [Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/26386?src=pr&el=footer). Last update [304d8d4...7f81c39](https://codecov.io/gh/pandas-dev/pandas/pull/26386?src=pr&el=lastupdated). Read the [comment docs](https://docs.codecov.io/docs/pull-request-comments).
 # [Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/26386?src=pr&el=h1) Report
> :exclamation: No coverage uploaded for pull request base (`master@7ba2ec8`). [Click here to learn what that means](https://docs.codecov.io/docs/error-reference#section-missing-base-commit).
> The diff coverage is `n/a`.

[![Impacted file tree graph](https://codecov.io/gh/pandas-dev/pandas/pull/26386/graphs/tree.svg?width=650&token=eZ4WkYLtcO&height=150&src=pr)](https://codecov.io/gh/pandas-dev/pandas/pull/26386?src=pr&el=tree)

```diff
@@            Coverage Diff            @@
##             master   #26386   +/-   ##
=========================================
  Coverage          ?   91.68%           
=========================================
  Files             ?      174           
  Lines             ?    50704           
  Branches          ?        0           
=========================================
  Hits              ?    46488           
  Misses            ?     4216           
  Partials          ?        0
```

| Flag | Coverage Δ | |
|---|---|---|
| #multiple | `90.18% <ø> (?)` | |
| #single | `41.33% <ø> (?)` | |


------

[Continue to review full report at Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/26386?src=pr&el=continue).
> **Legend** - [Click here to learn more](https://docs.codecov.io/docs/codecov-delta)
> `Δ = absolute <relative> (impact)`, `ø = not affected`, `? = missing data`
> Powered by [Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/26386?src=pr&el=footer). Last update [7ba2ec8...4196a49](https://codecov.io/gh/pandas-dev/pandas/pull/26386?src=pr&el=lastupdated). Read the [comment docs](https://docs.codecov.io/docs/pull-request-comments).
 thanks @gfyoung failure was unrelated