TST: remove tests and docs for legacy (pre 0.12) hdf5 support
- [ ] closes #xxxx
- [ ] tests added / passed
- [ ] passes `git diff upstream/master -u -- "*.py" | flake8 --diff`
- [ ] whatsnew entry

Removing tests for old compatability because this issue is sufficiently old now, that people should be expected to have solved this themselves by now.

The first commit removes the legacy test for pandas v0.10. The second commit removes the legacy test for pandas v0.11.

This pull request replaces #17398. 

See also discussion in #17375.
# [Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/17404?src=pr&el=h1) Report
> Merging [#17404](https://codecov.io/gh/pandas-dev/pandas/pull/17404?src=pr&el=desc) into [master](https://codecov.io/gh/pandas-dev/pandas/commit/062f6f118fe4ea439ae255a8ff886a532e20ecdb?src=pr&el=desc) will **decrease** coverage by `0.02%`.
> The diff coverage is `n/a`.

[![Impacted file tree graph](https://codecov.io/gh/pandas-dev/pandas/pull/17404/graphs/tree.svg?width=650&src=pr&token=eZ4WkYLtcO&height=150)](https://codecov.io/gh/pandas-dev/pandas/pull/17404?src=pr&el=tree)

```diff
@@            Coverage Diff             @@
##           master   #17404      +/-   ##
==========================================
- Coverage   91.03%   91.01%   -0.03%     
==========================================
  Files         163      163              
  Lines       49580    49580              
==========================================
- Hits        45137    45126      -11     
- Misses       4443     4454      +11
```

| Flag | Coverage Δ | |
|---|---|---|
| #multiple | `88.8% <ø> (ø)` | :arrow_up: |
| #single | `40.25% <ø> (-0.07%)` | :arrow_down: |

| [Impacted Files](https://codecov.io/gh/pandas-dev/pandas/pull/17404?src=pr&el=tree) | Coverage Δ | |
|---|---|---|
| [pandas/io/gbq.py](https://codecov.io/gh/pandas-dev/pandas/pull/17404?src=pr&el=tree#diff-cGFuZGFzL2lvL2dicS5weQ==) | `25% <0%> (-58.34%)` | :arrow_down: |
| [pandas/core/frame.py](https://codecov.io/gh/pandas-dev/pandas/pull/17404?src=pr&el=tree#diff-cGFuZGFzL2NvcmUvZnJhbWUucHk=) | `97.72% <0%> (-0.1%)` | :arrow_down: |
| [pandas/io/pytables.py](https://codecov.io/gh/pandas-dev/pandas/pull/17404?src=pr&el=tree#diff-cGFuZGFzL2lvL3B5dGFibGVzLnB5) | `92.79% <0%> (-0.09%)` | :arrow_down: |

------

[Continue to review full report at Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/17404?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/17404?src=pr&el=footer). Last update [062f6f1...330b2cd](https://codecov.io/gh/pandas-dev/pandas/pull/17404?src=pr&el=lastupdated). Read the [comment docs](https://docs.codecov.io/docs/pull-request-comments).
 thanks!