Code cleanup: get rid of FirPosition

compiler/fir/tree/src/org/jetbrains/kotlin/fir/scopes/FirScope.kt

@@ -14,7 +14,6 @@ import org.jetbrains.kotlin.name.Name
 abstract class FirScope {
     open fun processClassifiersByName(
         name: Name,
-        position: FirPosition,
         processor: (FirClassifierSymbol<*>) -> ProcessorAction
     ): ProcessorAction = NEXT
 
@@ -30,11 +29,6 @@ abstract class FirScope {
     ): ProcessorAction = NEXT
 }
 
-enum class FirPosition(val allowTypeParameters: Boolean = true) {
-    SUPER_TYPE_OR_EXPANSION(allowTypeParameters = false),
-    OTHER
-}
-
 enum class ProcessorAction {
     STOP,
     NEXT,