chore: remove universal packages from install list

[anujmaheshwari1]

What type of PR is this?
This PR removes certain unused packages that are installed from universe/multiverse repo.

1. traceroute
2. iftop

What this PR does / why we need it:

Which issue(s) this PR fixes:

Fixes #

Requirements:

• uses conventional commit messages
• includes documentation
• adds unit tests
• tested upgrade from previous version

Special notes for your reviewer:

Release note:

Once this PR is merged, all VHDs built hence will not have the following packages installed on the VHD:
1) traceroute
2) iftop
If a customer wants to use any of these, they should install it themselves, since these packages will no longer be pre-installed on the AKS Ubuntu base images.

[coveralls]

Pull Request Test Coverage Report for Build 8512907478

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 80.246%

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Totals
Change from base Build 8511638735:	0.0%
Covered Lines:	2348
Relevant Lines:	2926

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💛 - Coveralls