docs: remove gms core preview for wear and redirect

Change-Id: I8dd618a8fc99034cd73927d4aa312fe871081f83
diff --git a/docs/html/_redirects.yaml b/docs/html/_redirects.yaml
index 58cf523..c5b6c24 100644
--- a/docs/html/_redirects.yaml
+++ b/docs/html/_redirects.yaml
@@ -384,3 +384,6 @@
 
 - from: /edu
   to: /distribute/googleplay/edu/index.html
+
+- from: /preview/google-play-services-wear.html
+  to: /training/building-wearables.html
\ No newline at end of file