runtime(doc): Revert outdated comment in completeopt's fuzzy documentation

Originally, `:set completeopt+=fuzzy` did not affect how the candidate
list is collected in default keyword completion. A comment was added to
documentation as part of #14912 to clarify it. #15193 later changed the
fuzzy behavior to now change the candidate collection behavior as well
so the clarification in docs is now wrong. Remove them here.

closes: #15656

Signed-off-by: Yee Cheng Chin <ychin.git@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/runtime/doc/options.txt b/runtime/doc/options.txt
index 50c25f7..26779ad 100644
--- a/runtime/doc/options.txt
+++ b/runtime/doc/options.txt
@@ -1,4 +1,4 @@
-*options.txt*	For Vim version 9.1.  Last change: 2024 Sep 07
+*options.txt*	For Vim version 9.1.  Last change: 2024 Sep 10
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -2148,10 +2148,7 @@
 	   fuzzy    Enable |fuzzy-matching| for completion candidates. This
 		    allows for more flexible and intuitive matching, where
 		    characters can be skipped and matches can be found even
-		    if the exact sequence is not typed.  Only makes a
-		    difference how completion candidates are reduced from the
-		    list of alternatives, but not how the candidates are
-		    collected (using different completion types).
+		    if the exact sequence is not typed.
 
 					*'completepopup'* *'cpp'*
 'completepopup' 'cpp'	string (default empty)