[FIR] ClassWrapper: code cleanup

compiler/fir/lightTree/src/org/jetbrains/kotlin/fir/lightTree/fir/ClassWrapper.kt

@@ -12,9 +12,6 @@ import org.jetbrains.kotlin.descriptors.Visibility
 import org.jetbrains.kotlin.fir.expressions.FirExpression
 import org.jetbrains.kotlin.fir.lightTree.fir.modifier.Modifier
 import org.jetbrains.kotlin.fir.types.FirTypeRef
-import org.jetbrains.kotlin.fir.types.FirUserTypeRef
-import org.jetbrains.kotlin.fir.types.builder.buildUserTypeRef
-import org.jetbrains.kotlin.fir.types.impl.FirQualifierPartImpl
 import org.jetbrains.kotlin.name.Name
 import org.jetbrains.kotlin.name.SpecialNames
 
@@ -63,11 +60,4 @@ class ClassWrapper(
             else -> Visibilities.UNKNOWN
         }
     }
-
-    fun getFirUserTypeFromClassName(): FirUserTypeRef {
-        return buildUserTypeRef {
-            isMarkedNullable = false
-            qualifier.add(FirQualifierPartImpl(className))
-        }
-    }
 }