[IR generator] Remove unused suppressPrint property

compiler/ir/ir.tree/tree-generator/src/org/jetbrains/kotlin/ir/generator/config/ConfigModel.kt

@@ -52,7 +52,6 @@ class ElementConfig(
     var typeKind: TypeKind? = null
 
     var generationCallback: (TypeSpec.Builder.() -> Unit)? = null
-    var suppressPrint = false
     var kDoc: String? = null
 
     override val element get() = this

compiler/ir/ir.tree/tree-generator/src/org/jetbrains/kotlin/ir/generator/model/Model.kt

@@ -44,7 +44,6 @@ class Element(
     val fieldsToSkipInIrFactoryMethod = config.fieldsToSkipInIrFactoryMethod
 
     val generationCallback = config.generationCallback
-    val suppressPrint = config.suppressPrint
     val propertyName = config.propertyName
     val kDoc = config.kDoc
     val additionalImports: List<Import> = config.additionalImports

compiler/ir/ir.tree/tree-generator/src/org/jetbrains/kotlin/ir/generator/print/Elements.kt

@@ -17,7 +17,6 @@ import java.io.File
 
 fun printElements(generationPath: File, model: Model) = sequence {
     for (element in model.elements) {
-        if (element.suppressPrint) continue
 
         val elementName = element.toPoet()
         val selfParametrizedElementName = element.toPoetSelfParameterized()