fix: cleanup

Author: jeluard

packages/api/test/utils/checkAgainstSpec.ts

@@ -202,10 +202,7 @@ function prettyAjvErrors(errors: ErrorObject[] | null | undefined): string {
 type StringifiedProperty = string | StringifiedProperty[] | null | undefined;
 
 function stringifyProperty(value: unknown): StringifiedProperty {
-  if (value === undefined || value === null || typeof value === "string") {
-    // Handle specifically null as `typeof null === "object"`
-    return value;
-  } else if (typeof value === "number") {
+  if (typeof value === "number") {
     return value.toString(10);
   } else if (Array.isArray(value)) {
     return value.map(stringifyProperty);

packages/beacon-node/src/api/impl/beacon/blocks/index.ts

@@ -406,7 +406,7 @@ export function getBeaconBlockApi({
       await publishBlock(signedBlockOrContents, opts);
     },
 
-    async getBlobSidecars(blockId, indices = []) {
+    async getBlobSidecars(blockId, indices) {
       const {block, executionOptimistic} = await resolveBlockId(chain, blockId);
       const blockRoot = config.getForkTypes(block.message.slot).BeaconBlock.hashTreeRoot(block.message);