chore: Cleanup timestamp setting blocks in samples (#631)

Author: nicain

packages/google-cloud-videointelligence/README.md

@@ -91,18 +91,6 @@ labels.forEach(label => {
   console.log(`Label ${label.entity.description} occurs at:`);
   label.segments.forEach(segment => {
     segment = segment.segment;
-    if (segment.startTimeOffset.seconds === undefined) {
-      segment.startTimeOffset.seconds = 0;
-    }
-    if (segment.startTimeOffset.nanos === undefined) {
-      segment.startTimeOffset.nanos = 0;
-    }
-    if (segment.endTimeOffset.seconds === undefined) {
-      segment.endTimeOffset.seconds = 0;
-    }
-    if (segment.endTimeOffset.nanos === undefined) {
-      segment.endTimeOffset.nanos = 0;
-    }
     console.log(
       `\tStart: ${segment.startTimeOffset.seconds}` +
         `.${(segment.startTimeOffset.nanos / 1e6).toFixed(0)}s`

packages/google-cloud-videointelligence/samples/quickstart.js

@@ -48,18 +48,6 @@ async function main() {
     console.log(`Label ${label.entity.description} occurs at:`);
     label.segments.forEach(segment => {
       segment = segment.segment;
-      if (segment.startTimeOffset.seconds === undefined) {
-        segment.startTimeOffset.seconds = 0;
-      }
-      if (segment.startTimeOffset.nanos === undefined) {
-        segment.startTimeOffset.nanos = 0;
-      }
-      if (segment.endTimeOffset.seconds === undefined) {
-        segment.endTimeOffset.seconds = 0;
-      }
-      if (segment.endTimeOffset.nanos === undefined) {
-        segment.endTimeOffset.nanos = 0;
-      }
       console.log(
         `\tStart: ${segment.startTimeOffset.seconds}` +
           `.${(segment.startTimeOffset.nanos / 1e6).toFixed(0)}s`