fix: remove the settings_data injection script temporarily

[dakshpokar]

Description

This is a temporary fix for the issue #119. This removes the settings_data injection script that is included with every iframe onload event in pymaidr.

Type of Change

• Bug fix
• New feature
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• Any dependent changes have been merged and published in downstream modules

Pull Request

Changes Made

1. Removed the Environment.initialize_llm_secrets() function from the onload event in iframe

[jooyoungseo]

I am approving this PR, but not going to merge until you implement the action item 2 in a separate PR. Please address the tempfile load. I will merge them together.

[jooyoungseo]

This patch has already been merged.