refactor!: removed listEmojiCustom method

[abhinavkrin]

Proposed changes (including videos or screenshots)

removed listEmojiCustom method as it has been replaced with emoji-custom.list endpoint

Issue(s)

Steps to test or reproduce

Further comments

CORE-355

[dionisio-bot]

Looks like this PR is ready to merge! 🎉
If you have any trouble, please check the PR guidelines

[changeset-bot]

⚠️ No Changeset found

Latest commit: e1a7cfd

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types

Click here to learn what changesets are, and how to add one.

Click here if you're a maintainer who wants to add a changeset to this PR

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 56.71%. Comparing base (b484993) to head (e1a7cfd).

Additional details and impacted files

@@                Coverage Diff                @@
##           release-7.0.0   #32542      +/-   ##
=================================================
- Coverage          56.71%   56.71%   -0.01%     
=================================================
  Files               2496     2496              
  Lines              55357    55357              
  Branches           11455    11455              
=================================================
- Hits               31397    31393       -4     
- Misses             21260    21295      +35     
+ Partials            2700     2669      -31     

Flag	Coverage Δ
unit	71.92% <ø> (-0.04%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

[MarcosSpessatto]

I believe a better replacement for this method would be the endpoint emoji-custom.all instead of emoji-custom.list

The merge-base changed after approval.