Backend: Remove deprecated Regex Methods

[j10a1n15]

What

Removed 3 deprecated regexutils methods. This gets rid of like 40-50 warnings. These methods have been deprecated for around 3-4 months now.

Changelog Technical Details

• Removed deprecated regex utils methods. - j10a1n15

[github-actions[bot]]

One or more Detekt Failures were detected:

• FirePillarDisplay.kt#L35: Missing newline after "{"
• FirePillarDisplay.kt#L35: Missing newline after "{"