fix: remove unnecessary onCreate calls

[david-allison]

Note

Assisted-by: Claude Opus 4.8 - investigation and fix

Purpose / Description

super.onCreateDialog was not required, as the classes returned a custom dialog

Fixes

• Fixes [BUG]: onCreateDialog calls super.onCreate #21171

How Has This Been Tested?

Opened 'CustomStudyDialog'

Trusting Ci

Learning

Added in ae7d237

Checklist

• You have a descriptive commit message with a short title (first line, max 50 chars).
• You have commented your code, particularly in hard-to-understand areas
• You have performed a self-review of your own code
• UI changes: include screenshots of all affected screens (in particular showing any new or changed strings)
• UI Changes: You have tested your change using the Google Accessibility Scanner

[lukstbit]

Sure, I don't see why we would ever want to manually call other lifecycle methods.
Very old dialogs, probably some ancient forgotten lore + one dialog from me(definitely a mistake)