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/inference/recursiveLocalFuns/localFactorial.fir.kt

@@ -1,5 +1,4 @@
 // FIR_IDE_IGNORE
-// !WITH_NEW_INFERENCE
 // See KT-6271
 fun foo() {
     fun fact(n: Int) = {

compiler/testData/diagnostics/tests/inference/recursiveLocalFuns/localFactorial.kt

@@ -1,5 +1,4 @@
 // FIR_IDE_IGNORE
-// !WITH_NEW_INFERENCE
 // See KT-6271
 fun foo() {
     fun fact(n: Int) = {

compiler/testData/diagnostics/tests/inference/recursiveLocalFuns/recursiveFun.fir.kt

@@ -1,5 +1,4 @@
 // FIR_IDE_IGNORE
-// !WITH_NEW_INFERENCE
 fun foo() {
     fun bar() = (fun() = bar())
 }

compiler/testData/diagnostics/tests/inference/recursiveLocalFuns/recursiveFun.kt

@@ -1,5 +1,4 @@
 // FIR_IDE_IGNORE
-// !WITH_NEW_INFERENCE
 fun foo() {
     fun bar() = (fun() = <!TYPECHECKER_HAS_RUN_INTO_RECURSIVE_PROBLEM!><!DEBUG_INFO_MISSING_UNRESOLVED!>bar<!>()<!>)
 }

compiler/testData/diagnostics/tests/inference/recursiveLocalFuns/recursiveLambda.fir.kt

@@ -1,5 +1,4 @@
 // FIR_IDE_IGNORE
-// !WITH_NEW_INFERENCE
 fun foo() {
     fun bar() = {
         bar()

compiler/testData/diagnostics/tests/inference/recursiveLocalFuns/recursiveLambda.kt

@@ -1,5 +1,4 @@
 // FIR_IDE_IGNORE
-// !WITH_NEW_INFERENCE
 fun foo() {
     fun bar() = {
         <!TYPECHECKER_HAS_RUN_INTO_RECURSIVE_PROBLEM!><!DEBUG_INFO_MISSING_UNRESOLVED!>bar<!>()<!>

compiler/testData/diagnostics/tests/inference/recursiveLocalFuns/selfCall.fir.kt

@@ -1,5 +1,4 @@
 // FIR_IDE_IGNORE
-// !WITH_NEW_INFERENCE
 fun foo() {
     fun bar1() = bar1()
 

compiler/testData/diagnostics/tests/inference/recursiveLocalFuns/selfCall.kt

@@ -1,5 +1,4 @@
 // FIR_IDE_IGNORE
-// !WITH_NEW_INFERENCE
 fun foo() {
     fun bar1() = <!TYPECHECKER_HAS_RUN_INTO_RECURSIVE_PROBLEM!><!DEBUG_INFO_MISSING_UNRESOLVED!>bar1<!>()<!>