Remove first argument of selsnap.

st.c

@@ -453,7 +453,7 @@ static inline bool selected(int, int);
 static char *getsel(void);
 static void selcopy(Time);
 static void selscroll(int, int);
-static void selsnap(int, int *, int *, int);
+static void selsnap(int *, int *, int);
 static int x2col(int);
 static int y2row(int);
 static void getbuttoninfo(XEvent *);
@@ -695,8 +695,8 @@ selnormalize(void) {
 	sel.nb.y = MIN(sel.ob.y, sel.oe.y);
 	sel.ne.y = MAX(sel.ob.y, sel.oe.y);
 
-	selsnap(sel.snap, &sel.nb.x, &sel.nb.y, -1);
-	selsnap(sel.snap, &sel.ne.x, &sel.ne.y, +1);
+	selsnap(&sel.nb.x, &sel.nb.y, -1);
+	selsnap(&sel.ne.x, &sel.ne.y, +1);
 
 	/* expand selection over line breaks */
 	if (sel.type == SEL_RECTANGULAR)
@@ -720,12 +720,12 @@ selected(int x, int y) {
 }
 
 void
-selsnap(int mode, int *x, int *y, int direction) {
+selsnap(int *x, int *y, int direction) {
 	int newx, newy, xt, yt;
 	bool delim, prevdelim;
 	Glyph *gp, *prevgp;
 
-	switch(mode) {
+	switch(sel.snap) {
 	case SNAP_WORD:
 		/*
 		 * Snap around if the word wraps around at the end or