SDL: README-dynapi.md: Google+ link is gone, remove it.

From 57bfed79e29a42190b2ea30962700a3c52b5207b Mon Sep 17 00:00:00 2001
From: "Ryan C. Gordon" <[EMAIL REDACTED]>
Date: Tue, 3 Aug 2021 22:15:04 -0400
Subject: [PATCH] README-dynapi.md: Google+ link is gone, remove it.

The Wayback Machine doesn't even have it.  :(
---
 docs/README-dynapi.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/README-dynapi.md b/docs/README-dynapi.md
index 4e97b308cc..47b726b1df 100644
--- a/docs/README-dynapi.md
+++ b/docs/README-dynapi.md
@@ -1,6 +1,6 @@
 # Dynamic API
 
-Originally posted [on Ryan's Google+ account](https://plus.google.com/103391075724026391227/posts/TB8UfnDYu4U).
+Originally posted on Ryan's Google+ account.
 
 Background: