‼️ Remove unused `silent` arg in `ParserBlock.tokenize`

[codecov[bot]]

Codecov Report

Patch coverage: 100.00% and no project coverage change.

Comparison is base (90b367d) 95.17% compared to head (1b6007a) 95.17%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #284 +/- ## ======================================= Coverage 95.17% 95.17% ======================================= Files 64 64 Lines 3437 3437 ======================================= Hits 3271 3271 Misses 166 166 ``` | Flag | Coverage Δ | | |---|---|---| | pytests | `95.17% <100.00%> (ø)` | | 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=executablebooks#carryforward-flags-in-the-pull-request-comment) to find out more. | [Impacted Files](https://app.codecov.io/gh/executablebooks/markdown-it-py/pull/284?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=executablebooks) | Coverage Δ | | |---|---|---| | [markdown\_it/parser\_block.py](https://app.codecov.io/gh/executablebooks/markdown-it-py/pull/284?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=executablebooks#diff-bWFya2Rvd25faXQvcGFyc2VyX2Jsb2NrLnB5) | `91.83% <100.00%> (ø)` | |

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