gittutorial.txt: remove reference to ancient Git version

tacker66 · gitster · commit 022cf2bf88e6 · 2014-11-11T14:46:08.000-08:00
Signed-off-by: Thomas Ackermann &lt;th.acker@arcor.de&gt;
Signed-off-by: Junio C Hamano &lt;gitster@pobox.com&gt;
diff --git a/Documentation/gittutorial.txt b/Documentation/gittutorial.txt
@@ -3,7 +3,7 @@ gittutorial(7)
 
 NAME
 ----
-gittutorial - A tutorial introduction to Git (for version 1.5.1 or newer)
+gittutorial - A tutorial introduction to Git
 
 SYNOPSIS
 --------
