Remove default acorn options + other fixes

[dnalborczyk]

This PR contains:

• bugfix
• feature
• refactor
• documentation
• other

Are tests included?

• yes (bugfixes and features will not be merged without tests)
• no

Breaking Changes?

• yes (breaking changes will not be merged unless absolutely necessary)
• no

List any relevant issue numbers:

Description

just some things I noticed when looking through: #4784

allowHashBang and allowAwaitOutsideFunction are default with ecmaVersion: "latest"

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (master@6a29327). Click here to learn what that means.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##             master    #4786   +/-   ##
=========================================
  Coverage          ?   99.03%           
=========================================
  Files             ?      217           
  Lines             ?     7773           
  Branches          ?     2158           
=========================================
  Hits              ?     7698           
  Misses            ?       24           
  Partials          ?       51           

Impacted Files	Coverage Δ
src/Bundle.ts	100.00% <ø> (ø)
src/Module.ts	100.00% <100.00%> (ø)
src/utils/PluginDriver.ts	100.00% <100.00%> (ø)
src/utils/options/normalizeInputOptions.ts	100.00% <100.00%> (ø)

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[lukastaegert]

Looks reasonable to me

[github-actions]

Thank you for your contribution! ❤️

You can try out this pull request locally by installing Rollup via

npm install dnalborczyk/rollup#parser-options

or load it into the REPL:
https://rollupjs.org/repl/?pr=4786

[lukastaegert]

This PR has been released as part of rollup@3.10.0. You can test it via npm install rollup.