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/recovery/absentLeftHandSide.fir.kt

@@ -1,4 +1,3 @@
-// !WITH_NEW_INFERENCE
 fun import() {
     <!UNRESOLVED_REFERENCE!>import<!> a<!SYNTAX!>.<!><!UNRESOLVED_REFERENCE!>*<!><!SYNTAX!><!>
 }

compiler/testData/diagnostics/tests/recovery/absentLeftHandSide.kt

@@ -1,4 +1,3 @@
-// !WITH_NEW_INFERENCE
 fun import() {
     <!FUNCTION_CALL_EXPECTED!>import<!> <!UNRESOLVED_REFERENCE!>a<!><!SYNTAX!>.<!><!DEBUG_INFO_MISSING_UNRESOLVED!>*<!><!SYNTAX!><!>
 }