Remove IIFE's in diff_notes_bundle.js

This MR removes unnecessary IIFEs from files used in diff_notes_bundle.js

EE Port: https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/1672

ref: https://gitlab.com/gitlab-org/gitlab-ce/issues/29219

@filipa can you review? Since most changes are just white spaces better activate Hide whitespace changes when reviewing.

Here's the EE port for this MR https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/1672

assigned to @filipa

@alfredo1 code LGTM! Thank you for this! Since this is not a regression, should the milestone be %9.2?

@alfredo1 changed the milestone to %9.2 feel free to change it back

changed milestone to %9.2

approved this merge request

merged

mentioned in commit 18da66a5

I'm changing it to 9.1 since the previous ones are also in 9.1

changed milestone to %9.1

@alfredo1 shouldn't be 9.2 seeing as this is neither a regression or a security fix https://gitlab.com/gitlab-org/gitlab-ce/blob/master/PROCESS.md#after-the-7th

changed milestone to %9.2