[k2] Convert allDependsOnDependencies to FirModuleData member property

This essentially caches topological sort of dependsOn-dependencies in
FirModuleData. Caching it became more necessary after previous commits
that started to call it quite frequently in
VariableStorageImpl.getStability

compiler/fir/providers/src/org/jetbrains/kotlin/fir/FirVisibilityChecker.kt

@@ -49,8 +49,6 @@ abstract class FirModuleVisibilityChecker : FirSessionComponent {
     }
 }
 
-val FirModuleData.allDependsOnDependencies: List<FirModuleData> get() = topologicalSort(dependsOnDependencies) { it.dependsOnDependencies }
-
 abstract class FirVisibilityChecker : FirSessionComponent {
     @NoMutableState
     object Default : FirVisibilityChecker() {