Remove `$rawSql` parameter from `AbstractCommand::internalExecute()` method

[Tigrov]

Remove $rawSql parameter from

• AbstractCommand::internalExecute() method
• AbstractPdoCommand::internalExecute() method

Q	A
Is bugfix?	❌
New feature?	❌
Breaks BC?	✔️
Fixed issues	#767

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 99.59%. Comparing base (68823a6) to head (7f9ce7a).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #841 +/- ## ========================================= Coverage 99.59% 99.59% Complexity 1316 1316 ========================================= Files 64 64 Lines 3236 3236 ========================================= Hits 3223 3223 Misses 13 13 ```

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