Remove WITH_NEW_INFERENCE directive from all tests

This directive anyway does not make test run twice with OI, and with NI
It only once run the test with specific settings (// LANGUAGE)
and ignores irrelevant (OI or NI tags)

compiler/testData/diagnostics/tests/ResolveOfJavaGenerics.kt

@@ -1,4 +1,3 @@
-// !WITH_NEW_INFERENCE
 // Fixpoint generic in Java: Enum<T extends Enum<T>>
 fun test(a : java.lang.annotation.RetentionPolicy) {