V1 embedding

[nikb7]

Flutter 3.27 doesn't support V1 embedding.
This import is unused and hence the functionality of plugin should remain intact.

[g-starr]

Hi, @nikb7 , question, is this the cause/fix of the below error on Flutter 3.27.1?

* What went wrong:
Could not determine the dependencies of task ':mixpanel_flutter:compileDebugAidl'.
> Failed to find Build Tools revision 34.0.0

* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 10s
Error: Gradle task assembleDebug failed with exit code 1

[nikb7]

Yes, @g-starr, this fixes compilation on Android on flutter 3.27.1

[nikb7]

@jaredmixpanel @zihejia