Remove the bogus time/depth, and fix the positioning of the Handler after updateTicks.

Remove the bogus time/depth that was duplicated in the
Handler - dirk didn't realized that I already created the
same data that he put on it later, but mine was double and
his his was int, I choosed his implementation since he knows
a bit more than I do about subsurface internals.

Besides that, I worked a bit on the logic that called update ticks,
because it was calling it for every mouseMoveEvent, it created
sooooo many ticks that it made the app unusable ( and slow. )

Signed-off-by: Tomaz Canabrava <tcanabrava@kde.org>

qt-ui/diveplanner.h

@@ -20,8 +20,6 @@ public:
 	DiveHandler();
 	QGraphicsLineItem *from;
 	QGraphicsLineItem *to;
-	qreal time;
-	qreal depth;
 	int sec;
 	int mm;
 };