ERR: Clarify location of EOF on unbalanced quotes
* Clarifies message in the C engine (original issue)
* Python's `csv` module no longer fires specific errors for that, so removed it from handling

Closes #22789.
Hello @gfyoung! Thanks for submitting the PR.

 - There are no PEP8 issues in the file [`pandas/io/parsers.py`](https://github.com/gfyoung/pandas/blob/80b1c979856e3adf5627a2bebfdc5c8aa120b77e/pandas/io/parsers.py) !

 - There are no PEP8 issues in the file [`pandas/tests/io/parser/common.py`](https://github.com/gfyoung/pandas/blob/80b1c979856e3adf5627a2bebfdc5c8aa120b77e/pandas/tests/io/parser/common.py) !

 - There are no PEP8 issues in the file [`pandas/tests/io/parser/quoting.py`](https://github.com/gfyoung/pandas/blob/80b1c979856e3adf5627a2bebfdc5c8aa120b77e/pandas/tests/io/parser/quoting.py) !

 # [Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/22814?src=pr&el=h1) Report
> Merging [#22814](https://codecov.io/gh/pandas-dev/pandas/pull/22814?src=pr&el=desc) into [master](https://codecov.io/gh/pandas-dev/pandas/commit/2ab57b2dfc7005e580698c3e0bdf9478e96647db?src=pr&el=desc) will **increase** coverage by `<.01%`.
> The diff coverage is `n/a`.

[![Impacted file tree graph](https://codecov.io/gh/pandas-dev/pandas/pull/22814/graphs/tree.svg?width=650&token=eZ4WkYLtcO&height=150&src=pr)](https://codecov.io/gh/pandas-dev/pandas/pull/22814?src=pr&el=tree)

```diff
@@            Coverage Diff             @@
##           master   #22814      +/-   ##
==========================================
+ Coverage   92.18%   92.18%   +<.01%     
==========================================
  Files         169      169              
  Lines       50820    50818       -2     
==========================================
- Hits        46850    46849       -1     
+ Misses       3970     3969       -1
```

| Flag | Coverage Δ | |
|---|---|---|
| #multiple | `90.6% <ø> (ø)` | :arrow_up: |
| #single | `42.38% <ø> (ø)` | :arrow_up: |

| [Impacted Files](https://codecov.io/gh/pandas-dev/pandas/pull/22814?src=pr&el=tree) | Coverage Δ | |
|---|---|---|
| [pandas/io/parsers.py](https://codecov.io/gh/pandas-dev/pandas/pull/22814/diff?src=pr&el=tree#diff-cGFuZGFzL2lvL3BhcnNlcnMucHk=) | `95.6% <ø> (+0.05%)` | :arrow_up: |

------

[Continue to review full report at Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/22814?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/22814?src=pr&el=footer). Last update [2ab57b2...80b1c97](https://codecov.io/gh/pandas-dev/pandas/pull/22814?src=pr&el=lastupdated). Read the [comment docs](https://docs.codecov.io/docs/pull-request-comments).
 ok this all looks good. worth a what's note? > ok this all looks good. worth a what's note?

I was on the fence for that one.  It's so small that it didn't seem to merit it...up to you. 🙂  nope looks good. thanks