Revert "Debugger: Add IR-powered ranking tests"

This reverts commit ce21a559

Because of the erroneous behavior in 'BuilderFactoryForDuplicateSignatureDiagnostics.groupMembersDescriptorsBySignature', two functions with arguments of different inline class types are considered to have the same JVM signature.
Before the error wasn't reported, as classes didn't have proper source elements.
This issue has to be fixed before enabling ranking tests.

idea/jvm-debugger/jvm-debugger-test/testData/fileRanking/lambdas.kt

@@ -33,6 +33,4 @@ class A {
             block { block { val x = 4 }}
         }
     }
-}
-
-// IGNORE_BACKEND: JVM_IR
+}

idea/jvm-debugger/jvm-debugger-test/testData/fileRanking/propertyDelegates.kt

@@ -18,6 +18,4 @@ class B {
     val a by lazy {
         val b = 0
     }
-}
-
-// IGNORE_BACKEND: JVM_IR
+}