Remove experimental log from mass call client and add as doc comment

components/js-api-client/src/core/massCallClient.ts

@@ -52,6 +52,14 @@ const createFibonnaciSleeper = () => {
     };
 };
 
+/**
+ * Note: MassCallClient is experimental and may not work as expected.
+ * Creates a mass call client based on an existing ClientInterface.
+ *
+ * @param client ClientInterface
+ * @param options Object
+ * @returns MassClientInterface
+ */
 export function createMassCallClient(
     client: ClientInterface,
     options: {
@@ -77,8 +85,6 @@ export function createMassCallClient(
     let increment = options.initialSpawn ?? 1;
     const sleeper = createFibonnaciSleeper();
 
-    console.log('⚠️   MassCallClient is experimental and may not work as expected.');
-
     const execute = async () => {
         failedPromises = [];
         let batch = [];