[Code Health] Fix incorrect test name

wpt/web-animations/timing-model/animations/set-the-animation-start-time.html
was renamed in [1] but the name change was not reflected elsewhere.

In addition, the expectation file for the test on Android seems
unnecessary.

[1] https://chromium.googlesource.com/chromium/src/+/bf6c3b061813db88ca12c59690cece60d0b672f7

Change-Id: I6a640c3d56203380ad19ca3b1bb1278cc6971bd8
Reviewed-on: https://chromium-review.googlesource.com/c/1477938
Reviewed-by: Dirk Pranke <dpranke@chromium.org>
Commit-Queue: Yi Gu <yigu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#634404}
diff --git a/web-animations/README.md b/web-animations/README.md
index f6efbf9..75493ce 100644
--- a/web-animations/README.md
+++ b/web-animations/README.md
@@ -19,7 +19,7 @@
 
     Instead, try something like:
 
-    > *   `/web-animations/timing-model/animations/set-the-animation-start-time.html`<br>
+    > *   `/web-animations/timing-model/animations/setting-the-start-time-of-an-animation.html`<br>
     >     Tests all the branches and inputs to the procedure as defined in the
     >     spec (using the `Animation.startTime` API).
     > *   `/web-animations/interfaces/Animation/startTime.html`<br>