[FIR/IR generator] Remove unused properties of Type

compiler/fir/tree/tree-generator/src/org/jetbrains/kotlin/fir/tree/generator/model/Type.kt

@@ -5,11 +5,8 @@
 
 package org.jetbrains.kotlin.fir.tree.generator.model
 
-import org.jetbrains.kotlin.fir.tree.generator.printer.generics
 import org.jetbrains.kotlin.generators.tree.Importable
 
 data class Type(override val packageName: String?, override val type: String) : Importable {
-    val arguments = mutableListOf<String>()
-
-    override fun getTypeWithArguments(notNull: Boolean): String = type + generics
+    override fun getTypeWithArguments(notNull: Boolean): String = type
 }

compiler/fir/tree/tree-generator/src/org/jetbrains/kotlin/fir/tree/generator/printer/utils.kt

@@ -178,6 +178,3 @@ val Element.typeParameters: String
     get() = typeArguments.takeIf { it.isNotEmpty() }
         ?.joinToString(", ", "<", "> ")
         ?: ""
-
-val Type.generics: String
-    get() = arguments.takeIf { it.isNotEmpty() }?.joinToString(",", "<", ">") ?: ""