Remove one copy of duplicated alpha4 release note.

Noted by Andy Colson

diff --git a/doc/src/sgml/release-9.1.sgml b/doc/src/sgml/release-9.1.sgml
index f1255afe887c4e7c9b6025ba9f794ddc08578090..be8d65ae4be9408746420282fd7d69d6f0159169 100644 (file)
--- a/doc/src/sgml/release-9.1.sgml
+++ b/doc/src/sgml/release-9.1.sgml
@@ -612,18 +612,6 @@
         
        
 
-       
-        
-         When an autovacuum worker (other than one performing an
-         anti-wraparound vacuum) is unable to obtain a lock on the target
-         relation without blocking, skip the relation.
-        
-        
-         This avoids pinning down an autovacuum worker.  The next autovacuum
-         cycle will try again. 
-        
-       
-
        
         
          Track time of last statistics reset on databases and