Remove old tooltip code

frontend/src/card/lib/CardRenderer.js

@@ -16,7 +16,7 @@ import {
 } from "./utils";
 
 import { computeTimeseriesTicksInterval } from "./timeseries";
-import { determineSeriesIndexFromElement, getPieSliceTextElement } from "./tooltip";
+import { determineSeriesIndexFromElement } from "./tooltip";
 
 import { formatValue } from "metabase/lib/formatting";
 

frontend/src/card/lib/tooltip.js

-import d3 from "d3";
-
 function getElementIndex(e) {
     return [...e.classList].map(c => c.match(/^_(\d+)$/)).filter(c => c).map(c => parseInt(c[1], 10))[0];
 }
 
-
-export function getPieSliceTextElement(element) {
-    let index = getElementIndex(element);
-    return element.parentNode.querySelector("text.pie-slice._"+index);
-}
-
 // HACK: This determines the index of the series the provided element belongs to since DC doesn't seem to provide another way
 export function determineSeriesIndexFromElement(element) {
     // composed charts:
@@ -31,21 +23,3 @@ export function determineSeriesIndexFromElement(element) {
     // none?
     return null;
 }
-
-export function getPieSliceCentroid(element, slice) {
-    let parent = element.parentNode.parentNode;
-    let radius = parent.getBoundingClientRect().height / 2;
-    let innerRadius = 0;
-
-    let centroid = d3.svg.arc()
-        .outerRadius(radius).innerRadius(innerRadius)
-        .padAngle(slice.padAngle).startAngle(slice.startAngle).endAngle(slice.endAngle)
-        .centroid();
-
-    let pieRect = parent.getBoundingClientRect();
-
-    return {
-        x: pieRect.left + radius + centroid[0],
-        y: pieRect.top + radius + centroid[1]
-    };
-}