Remove @Kimundi from rfcbot polls

SimonSapin · web-flow · commit bfbf48f27d09 · 2019-12-16T10:02:54.000+01:00
Per email with them.
diff --git a/teams/libs.toml b/teams/libs.toml
@@ -31,6 +31,7 @@ name = "Libraries"
 ping = "rust-lang/libs"
 exclude-members = [
     "BurntSushi",
+    "Kimundi",
 ]
 
 [website]
