Update Traffic Generator to remove canary type logic (#148)

*Issue description:*
Some of the logic in the traffic generator isn't necessary, hence
removing them for simplicity

Test run:
https://github.com/aws-observability/aws-application-signals-test-framework/actions/runs/10166707923

By submitting this pull request, I confirm that my contribution is made
under the terms of the Apache 2.0 license.

sample-apps/traffic-generator/index.js

@@ -24,7 +24,7 @@ const sleep = ms => new Promise(resolve => setTimeout(resolve, ms));
 
 // This loop will run until the environment variables are available
 const waitForEnvVariables = async () => {
-    while (!process.env.MAIN_ENDPOINT || !process.env.REMOTE_ENDPOINT || !process.env.ID || !process.env.CANARY_TYPE) {
+    while (!process.env.MAIN_ENDPOINT || !process.env.REMOTE_ENDPOINT || !process.env.ID) {
         console.log('Environment variables not set. Waiting for 10 seconds...');
         await sleep(10000); // Wait for 10 seconds
     }
@@ -37,33 +37,15 @@ const trafficGenerator = async (interval) => {
     const mainEndpoint = process.env.MAIN_ENDPOINT;
     const remoteEndpoint = process.env.REMOTE_ENDPOINT;
     const id = process.env.ID;
-    const canaryType = process.env.CANARY_TYPE
 
     let urls = [
         `http://${mainEndpoint}/outgoing-http-call`,
         `http://${mainEndpoint}/aws-sdk-call?ip=${remoteEndpoint}&testingId=${id}`,
         `http://${mainEndpoint}/remote-service?ip=${remoteEndpoint}&testingId=${id}`,
-        `http://${mainEndpoint}/client-call`
+        `http://${mainEndpoint}/client-call`,
+        `http://${mainEndpoint}/mysql`,
     ];
 
-    if (canaryType === 'java-eks' || canaryType === 'python-eks') {
-        urls.push(`http://${mainEndpoint}/mysql`)
-    }
-
-    // Need to call some APIs so that it exceeds the metric limiter threshold and make the test
-    // APIs generate AllOtherOperations metric. Sleep for a minute to let cloudwatch service process the API call
-    // Calling it here before calling the remote sample app endpoint because the API generated by it is validated
-    // for AllOtherRemoteOperations in the metric validation step
-    if (canaryType === 'java-metric-limiter'){
-        const fakeUrls = [
-            `http://${mainEndpoint}`,
-            `http://${mainEndpoint}/fake-endpoint`
-        ]
-        // Send the fake requests and wait a minute
-        await sendRequests(fakeUrls);
-        await sleep(60000);
-    }
-
     await sendRequests(urls);
     setInterval(() => sendRequests(urls), interval);
 }