Remove Gradle afterEvaluate block to include lifecycle dependencies

[mklim]

As part of migrating the plugins, we've needed to add in a Gradle afterEvaluate block that includes some extra libraries in cases where we're on older versions of Flutter and they're not exposed by the engine: https://gist.github.com/blasten/78e97b1d97a736d7e8dcc3f520cea3f0.

We've chosen to do this instead of including them in just plain old dependencies because plugins really shouldn't be specifying these dependencies themselves. We're only including them at all to prevent compile failures on older Flutter versions.

Once the missing dependency fix rolls to Flutter stable we should remove them.

[mklim]

This is now unblocked. See also #47153.

[xster]

Closing this. #47153 will track the remaining work.

[lock]

This thread has been automatically locked since there has not been any recent activity after it was closed. If you are still experiencing a similar issue, please open a new bug, including the output of flutter doctor -v and a minimal reproduction of the issue.