Update invalid head tests (#3400)

## Proposed Changes

Update the invalid head tests so that they work with the current default fork choice configuration.

Thanks @realbigsean for fixing the persistence test and the EF tests.

Co-authored-by: realbigsean <sean@sigmaprime.io>

testing/ef_tests/src/cases/fork_choice.rs

@@ -341,7 +341,7 @@ impl<E: EthSpec> Tester<E> {
         let result = self.block_on_dangerous(
             self.harness
                 .chain
-                .process_block(block.clone(), CountUnrealized::True),
+                .process_block(block.clone(), CountUnrealized::False),
         )?;
         if result.is_ok() != valid {
             return Err(Error::DidntFail(format!(