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/testsWithStdLib/java/concurrentHashMapContainsError.kt

@@ -1,5 +1,4 @@
 // !LANGUAGE: +ProhibitConcurrentHashMapContains
-// !WITH_NEW_INFERENCE
 // FULL_JDK
 
 class A : java.util.concurrent.ConcurrentHashMap<String, Int>() {