fix issue with text selection

src/common/browser.js

@@ -37,23 +37,6 @@ const supportsGoodTextCharPos_ = (function () {
   }
 }());
 
-// Support for correct bbox sizing on groups with horizontal/vertical lines
-const supportsHVLineContainerBBox_ = (function () {
-  const svgcontent = document.createElementNS(NSSVG, 'svg');
-  document.documentElement.append(svgcontent);
-  const path = document.createElementNS(NSSVG, 'path');
-  path.setAttribute('d', 'M0,0 10,0');
-  const path2 = document.createElementNS(NSSVG, 'path');
-  path2.setAttribute('d', 'M5,0 15,0');
-  const g = document.createElementNS(NSSVG, 'g');
-  g.append(path, path2);
-  svgcontent.append(g);
-  const bbox = g.getBBox();
-  svgcontent.remove();
-  // Webkit gives 0, FF gives 10, Opera (correctly) gives 15
-  return (bbox.width === 15);
-}());
-
 // Public API
 
 /**
@@ -83,12 +66,6 @@ export const isMac = () => isMac_;
 */
 export const isTouch = () => isTouch_;
 
-/**
- * @function module:browser.supportsHVLineContainerBBox
- * @returns {boolean}
-*/
-export const supportsHVLineContainerBBox = () => supportsHVLineContainerBBox_;
-
 /**
  * @function module:browser.supportsGoodTextCharPos
  * @returns {boolean}

src/common/units.js

@@ -11,20 +11,7 @@ const NSSVG = 'http://www.w3.org/2000/svg';
 const wAttrs = [ 'x', 'x1', 'cx', 'rx', 'width' ];
 const hAttrs = [ 'y', 'y1', 'cy', 'ry', 'height' ];
 const unitAttrs = [ 'r', 'radius', ...wAttrs, ...hAttrs ];
-// unused
-/*
-const unitNumMap = {
-  '%': 2,
-  em: 3,
-  ex: 4,
-  px: 5,
-  cm: 6,
-  mm: 7,
-  in: 8,
-  pt: 9,
-  pc: 10
-};
-*/
+
 // Container of elements.
 let elementContainer_;