Pwa 2780 remove increment decrement tab selection

[Sahilsks]

Description

Remove increase/decrease buttons of quantity selector from the tab index

Related Issue

Closes #3766

Acceptance

Verification Stakeholders

Specification

Verification Steps

Test scenario(s) for direct fix/feature

Test scenario(s) for any existing impacted features/areas

Test scenario(s) for any Magento Backend Supported Configurations

Is Browser/Device testing needed?

Any ad-hoc/edge case scenarios that need to be considered?

Screenshots / Screen Captures (if appropriate)

Screen.Recording.2023-03-08.at.2.26.20.PM.mov

Breaking Changes (if any)

Checklist

• I have added tests to cover my changes, if necessary.
• I have added translations for new strings, if necessary.
• I have updated the documentation accordingly, if necessary.

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[glo82145]

As associated ticket with this PR is closed. hence closing this PR.