DRILL-7945: Stop patching newly added Guava methods (#2247)
In order to support Apache Iceberg, GuavaPatcher adds several methods to
com.google.common.base.Preconditions required by Apache Iceberg runtime
but not available in Guava 18.
When Guava version was updated to 30.1.1, Guava Patcher tries to update
existing methods with some code referencing package protected methods
which do no exist anymore. Patching fails but as the methods do now
exists, there's no compatibility issue. That said, GuavaPatcher emits
some logging which might confuse end user.
Remove the unnecessary patching of the Preconditions class and also add
some unit test designed to fail if patching fails for any reason.
