Remove IE support

[blackfalcon]

Is your feature request related to a problem? Please describe.

We are no longer required to support Internet Explorer, so any and all tech included with the WC-Generator to support IE should be removed.

Describe the solution you'd like

See the following commit

• AlaskaAirlines/auro-header@57ca022
• AlaskaAirlines/auro-header@d1667e7
• AlaskaAirlines/auro-header@587177d
• AlaskaAirlines/auro-header@d1667e7
• AlaskaAirlines/auro-header@9f4c8f4
• AlaskaAirlines/auro-header@e107690

Exit criteria

This issue will be considered closed once all the specified es5 supporting resources have been removed from the project. The validate a demo component should be generated from the generator and when built will not have any processes or generated code that is required to support IE11 and below.

This includes re-processes CSS to support variable fallbacks and fixed sizes. There should be no es5-generated bundles or references to them in the documentation. All npm dependencies that are no longer required should be removed from the project.

Additional context

Currently with the generator, there is a build issue due to a poorly supported dependency.

npm ERR! code ERESOLVE
npm ERR! ERESOLVE unable to resolve dependency tree
npm ERR!
npm ERR! While resolving: @aurodesignsystem/[email protected]
npm ERR! Found: [email protected]
npm ERR! node_modules/rollup
npm ERR!   dev rollup@"^3.20.6" from the root project
npm ERR!
npm ERR! Could not resolve dependency:
npm ERR! peer rollup@"^0.65.2 || ^1.0.0 || ^2.0.0" from [email protected]
npm ERR! node_modules/rollup-plugin-minify-html-literals
npm ERR!   dev rollup-plugin-minify-html-literals@"^1.2.6" from the root project
npm ERR!
npm ERR! Fix the upstream dependency conflict, or retry
npm ERR! this command with --force, or --legacy-peer-deps
npm ERR! to accept an incorrect (and potentially broken) dependency resolution.
npm ERR!
npm ERR! See /Users/dalesande/.npm/eresolve-report.txt for a full report.

npm ERR! A complete log of this run can be found in:
npm ERR!     /Users/dalesande/.npm/_logs/2023-04-20T19_21_14_669Z-debug-0.log

This commit removes this dependency altogether.

While the reduction of es5 resources greatly reduces the bundle size of elements, not having HTML template literals minified does bloat the weight of an element.

A possible option is to look into a better-supported rollup-plugin-minify-template-literals dependency.