Removed redundant check for `cachedReplaceableIdentifiersNamesMap`

src/node-transformers/obfuscating-transformers/ClassDeclarationTransformer.ts

@@ -136,12 +136,8 @@ export class ClassDeclarationTransformer extends AbstractNodeTransformer {
         classDeclarationNode: ESTree.ClassDeclaration,
         blockScopeNode: TNodeWithBlockScope
     ): void {
-        const cachedReplaceableIdentifiersNamesMap: TReplaceableIdentifiersNames | undefined =
-            this.replaceableIdentifiers.get(blockScopeNode);
-
-        if (!cachedReplaceableIdentifiersNamesMap) {
-            return;
-        }
+        const cachedReplaceableIdentifiersNamesMap: TReplaceableIdentifiersNames =
+            this.replaceableIdentifiers.get(blockScopeNode)!;
 
         const cachedReplaceableIdentifiers: ESTree.Identifier[] | undefined = cachedReplaceableIdentifiersNamesMap
             .get(classDeclarationNode.id.name);

src/node-transformers/obfuscating-transformers/FunctionDeclarationTransformer.ts

@@ -136,12 +136,8 @@ export class FunctionDeclarationTransformer extends AbstractNodeTransformer {
         functionDeclarationNode: ESTree.FunctionDeclaration,
         blockScopeNode: TNodeWithBlockScope
     ): void {
-        const cachedReplaceableIdentifiersNamesMap: TReplaceableIdentifiersNames | undefined =
-            this.replaceableIdentifiers.get(blockScopeNode);
-
-        if (!cachedReplaceableIdentifiersNamesMap) {
-            return;
-        }
+        const cachedReplaceableIdentifiersNamesMap: TReplaceableIdentifiersNames =
+            this.replaceableIdentifiers.get(blockScopeNode)!;
 
         const cachedReplaceableIdentifiers: ESTree.Identifier[] | undefined = cachedReplaceableIdentifiersNamesMap
             .get(functionDeclarationNode.id.name);

src/node-transformers/obfuscating-transformers/VariableDeclarationTransformer.ts

@@ -145,12 +145,8 @@ export class VariableDeclarationTransformer extends AbstractNodeTransformer {
         blockScopeNode: TNodeWithBlockScope,
         scopeNode: ESTree.Node
     ): void {
-        const cachedReplaceableIdentifiersNamesMap: TReplaceableIdentifiersNames | undefined =
-            this.replaceableIdentifiers.get(scopeNode);
-
-        if (!cachedReplaceableIdentifiersNamesMap) {
-            return;
-        }
+        const cachedReplaceableIdentifiersNamesMap: TReplaceableIdentifiersNames =
+            this.replaceableIdentifiers.get(scopeNode)!;
 
         const identifierNames: string[] = [];