Fix news header

amoeba · amoeba · commit 151becb0cfb9 · 2024-12-04T14:09:18.000-08:00
diff --git a/r/NEWS.md b/r/NEWS.md
@@ -18,7 +18,6 @@
 -->
 
 # arrow 18.1.0
-# arrow 18.1.0.9000
 
 ## Minor improvements and fixes
 
