remove obsolete code from old d.{xp|yp} optimization attempt

Author: etpinard

src/components/drawing/index.js

@@ -68,9 +68,8 @@ drawing.setRect = function(s, x, y, w, h) {
  *  false if selection could not get translated
  */
 drawing.translatePoint = function(d, sel, xa, ya) {
-    // put xp and yp into d if pixel scaling is already done
-    var x = d.xp = xa.c2p(d.x);
-    var y = d.yp = ya.c2p(d.y);
+    var x = xa.c2p(d.x);
+    var y = ya.c2p(d.y);
 
     if(isNumeric(x) && isNumeric(y) && sel.node()) {
         // for multiline text this works better

src/traces/scatter/plot.js

@@ -501,13 +501,10 @@ function plotOne(gd, idx, plotinfo, cdscatter, cdscatterAll, element, transition
         join.selectAll('text')
             .call(Drawing.textPointStyle, trace, gd)
             .each(function(d) {
-
                 // This just *has* to be totally custom becuase of SVG text positioning :(
                 // It's obviously copied from translatePoint; we just can't use that
-                //
-                // put xp and yp into d if pixel scaling is already done
-                var x = d.xp || xa.c2p(d.x),
-                    y = d.yp || ya.c2p(d.y);
+                var x = xa.c2p(d.x);
+                var y = ya.c2p(d.y);
 
                 d3.select(this).selectAll('tspan.line').each(function() {
                     transition(d3.select(this)).attr({x: x, y: y});