dix: use single return statement in ApplySimpleSoftening

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Simon Thum <simon.thum@gmx.de>

dix/ptrveloc.c

@@ -697,12 +697,13 @@ static inline float
 ApplySimpleSoftening(int prev_delta, int delta)
 {
     float result = delta;
-    if (delta <= 1 && delta >= -1)
-        return result;
+
+    if (delta < -1 || delta > 1) {
 	if (delta > prev_delta)
 	    result -= 0.5;
 	else if (delta < prev_delta)
 	    result += 0.5;
+    }
     return result;
 }