Remove unused parameter in flutter application info loader

[creativepsyco]

Internal issue: b/187271871

This PR is mostly a cleaner revert of #25299 After that PR was submitted there is still a call

NetworkSecurityPolicy.getInstance().isCleartextTrafficPermitted()

inside ApplicationInfoLoader.java which results in calling the underlying xml parsing via the NetworkSecurityPolicy. This results in additional I/O contention in the main thread.

Since #25299 is anyways currently turned off as a feature --disallow-insecure-connections, maybe this can be reverted as well until we can get some other way of passing this info across.

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• Updated the tests

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[creativepsyco]

@xster please take a look thanks!

[xster]

Rerunning CI. I was trying something similar in #25623 but was running into some actual CI breakages. But it looks like your PR will pass.

[creativepsyco]

Lets merge this first then. or should I revert this

[xster]

Let's merge yours. We've been having CI issues last week. If the rerun still doesn't work, you might have to rebase.

[fluttergithubbot]

This pull request is not suitable for automatic merging in its current state.

• The status or check suite Windows Android AOT Engine has failed. Please fix the issues identified (or deflake) before re-applying this label.
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[creativepsyco]

Rebased.

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