Fix from comments

Author: meyertst-aws

swift/example_code/dynamodb/basics/Sources/basics.swift

@@ -91,7 +91,6 @@ struct ExampleCommand: ParsableCommand {
         //=====================================================================
 
         let tableName = "ddb-movies-sample-\(Int.random(in: 1 ... Int.max))"
-        // let tableName = String.uniqueName(withPrefix: "ddb-movies-sample", maxDigits: 8)
 
         print("Creating table \"\(tableName)\"...")