hdfsee: Don't round panel transformations

The rounding was supposed to prevent blurry panel display.  However, it
completely breaks display of any panels which aren't almost exactly
aligned with the x/y axes.

src/dw-hdfsee.c

@@ -134,7 +134,7 @@ static void draw_panel_rectangle(cairo_t *cr, cairo_matrix_t *basic_m,
 	                    rint(p.cny/dw->binning));
 
 	/* Twiddle directions according to matrix */
-	cairo_matrix_init(&m, rint(p.fsx), rint(p.fsy), rint(p.ssx), rint(p.ssy),
+	cairo_matrix_init(&m, p.fsx, p.fsy, p.ssx, p.ssy,
 	                      0.0, 0.0);
 	cairo_transform(cr, &m);