Remove redundant polyfill code for error reporting constants

[elidrissidev]

Description (*)

This PR removes redundant polyfill code that defines some error reporting constants which should be available in all of our supported PHP versions anyways. Correct if I'm wrong as I couldn't find specific information about when these constants were introduced.

Manual testing scenarios (*)

1. Everything should remain the same.

Contribution checklist (*)

• Pull request has a meaningful description of its purpose
• All commits are accompanied by meaningful commit messages
• All automated tests passed successfully (all builds are green)
• Add yourself to contributors list

[fballiano]

this is what I found

E_STRICT -> https://www.examveda.com/which-version-of-php-introduced-estrict-error-level-35395/
E_RECOVERABLE_ERROR -> https://www.php.net/releases/5_2_0.php
E_DEPRECATED -> https://electrictoolbox.com/php-prevent-e-deprecated-error-messages/

so you should be right assuming we don't need that code anymore

[github-actions]

Unit Test Results

1 files  ±0  1 suites  ±0   0s ⏱️ ±0s
0 tests ±0  0 ✔️ ±0  0 💤 ±0  0 ❌ ±0 
7 runs  ±0  5 ✔️ ±0  2 💤 ±0  0 ❌ ±0 

Results for commit 6a77e75. ± Comparison against base commit 926e005.