Revert "gitk: Only restore window size from ~/.gitk, not position"

This reverts commit b9bee11526 (gitk: Only restore window size from
~/.gitk, not position, 2008-03-10).

The earlier commit e9937d2a03 (Make gitk work reasonably well on
Cygwin, 2007-02-01) reworked the window layout considerably. Much of
this became irrelevant around 2011 after Cygwin gained an X11 server
and switched to a supportable port of the Unix/X11 Tcl/Tk (it is now
on the current 8.6 code base).

Part of the necessary change was to restore the window size across
sessions, but the position was also restored. This raised complaints
on the mailing list[*], because Gitk was opened on the wrong monitor.
b9bee11526 was the compromise, because it was only the size that
mattered for the Cygwin layout engine to work.

I personally, find it annoying when Gitk pops up on a random location
on the screen, in particular, since many other applications restore
the window positions across sessions, so why not Gitk as well? (I do
not operate multi-monitor setups, so I cannot test the case.)

[*] https://lore.kernel.org/git/47AAA254.2020008@thorn.ws/

Helped-by: Mark Levedahl <mlevedahl@gmail.com>
Signed-off-by: Johannes Sixt <j6t@kdbg.org>

gitk

@@ -2764,17 +2764,9 @@ proc makewindow {} {
     .pwbottom add .bright
     .ctop add .pwbottom
 
-    # restore window width & height if known
+    # restore window position if known
     if {[info exists geometry(main)]} {
-        if {[scan $geometry(main) "%dx%d" w h] >= 2} {
-            if {$w > [winfo screenwidth .]} {
-                set w [winfo screenwidth .]
-            }
-            if {$h > [winfo screenheight .]} {
-                set h [winfo screenheight .]
-            }
-            wm geometry . "${w}x$h"
-        }
+        wm geometry . "$geometry(main)"
     }
 
     if {[info exists geometry(state)] && $geometry(state) eq "zoomed"} {