Removed confnotify-6.0.patch.

I don't think it is a good idea to hardcode this patch in nixpkgs as it is likely that
a patch provided by a user will conflict with this patch. This is for instance the case
with the patch "single_tagset" (http://dwm.suckless.org/patches/single_tagset).

pkgs/applications/window-managers/dwm/confnotify-6.0.patch

@@ -1,36 +0,0 @@
-Fix SDL fullscreen problems when the resolution changes:
-https://groups.google.com/d/msg/wmii/nJBrSjrnnq8/ZEYWOWE5pj4J
-
-diff -r ec4baab78314 dwm.c
---- a/dwm.c	Mon Dec 19 15:38:30 2011 +0100
-+++ b/dwm.c	Sat Jan 14 12:35:50 2012 +0100
-@@ -397,9 +397,10 @@
- 		showhide(m->stack);
- 	else for(m = mons; m; m = m->next)
- 		showhide(m->stack);
--	if(m)
-+	if(m) {
- 		arrangemon(m);
--	else for(m = mons; m; m = m->next)
-+		restack(m);
-+	} else for(m = mons; m; m = m->next)
- 		arrangemon(m);
- }
- 
-@@ -408,7 +409,6 @@
- 	strncpy(m->ltsymbol, m->lt[m->sellt]->symbol, sizeof m->ltsymbol);
- 	if(m->lt[m->sellt]->arrange)
- 		m->lt[m->sellt]->arrange(m);
--	restack(m);
- }
- 
- void
-@@ -1827,6 +1827,8 @@
- 		.event_mask = ButtonPressMask|ExposureMask
- 	};
- 	for(m = mons; m; m = m->next) {
-+		if (m->barwin)
-+			continue;
- 		m->barwin = XCreateWindow(dpy, root, m->wx, m->by, m->ww, bh, 0, DefaultDepth(dpy, screen),
- 		                          CopyFromParent, DefaultVisual(dpy, screen),
- 		                          CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa);

pkgs/applications/window-managers/dwm/default.nix

@@ -16,7 +16,7 @@ stdenv.mkDerivation {
   prePatch = ''sed -i "s@/usr/local@$out@" config.mk'';
 
   # Allow users set their own list of patches
-  patches = [ ./confnotify-6.0.patch ] ++ patches;
+  inherit patches;
 
   buildPhase = " make ";