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diff --git a/contexts/data/lib/closure-library/closure/goog/math/line.js b/contexts/data/lib/closure-library/closure/goog/math/line.js
deleted file mode 100644
index 1cdd7c9..0000000
--- a/contexts/data/lib/closure-library/closure/goog/math/line.js
+++ /dev/null
@@ -1,177 +0,0 @@
-// Copyright 2008 The Closure Library Authors. All Rights Reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS-IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-
-/**
- * @fileoverview Represents a line in 2D space.
- *
- * @author robbyw@google.com (Robby Walker)
- */
-
-goog.provide('goog.math.Line');
-
-goog.require('goog.math');
-goog.require('goog.math.Coordinate');
-
-
-
-/**
- * Object representing a line.
- * @param {number} x0 X coordinate of the start point.
- * @param {number} y0 Y coordinate of the start point.
- * @param {number} x1 X coordinate of the end point.
- * @param {number} y1 Y coordinate of the end point.
- * @constructor
- */
-goog.math.Line = function(x0, y0, x1, y1) {
-  /**
-   * X coordinate of the first point.
-   * @type {number}
-   */
-  this.x0 = x0;
-
-  /**
-   * Y coordinate of the first point.
-   * @type {number}
-   */
-  this.y0 = y0;
-
-  /**
-   * X coordinate of the first control point.
-   * @type {number}
-   */
-  this.x1 = x1;
-
-  /**
-   * Y coordinate of the first control point.
-   * @type {number}
-   */
-  this.y1 = y1;
-};
-
-
-/**
- * @return {!goog.math.Line} A copy of this line.
- */
-goog.math.Line.prototype.clone = function() {
-  return new goog.math.Line(this.x0, this.y0, this.x1, this.y1);
-};
-
-
-/**
- * Tests whether the given line is exactly the same as this one.
- * @param {goog.math.Line} other The other line.
- * @return {boolean} Whether the given line is the same as this one.
- */
-goog.math.Line.prototype.equals = function(other) {
-  return this.x0 == other.x0 && this.y0 == other.y0 &&
-         this.x1 == other.x1 && this.y1 == other.y1;
-};
-
-
-/**
- * @return {number} The squared length of the line segment used to define the
- *     line.
- */
-goog.math.Line.prototype.getSegmentLengthSquared = function() {
-  var xdist = this.x1 - this.x0;
-  var ydist = this.y1 - this.y0;
-  return xdist * xdist + ydist * ydist;
-};
-
-
-/**
- * @return {number} The length of the line segment used to define the line.
- */
-goog.math.Line.prototype.getSegmentLength = function() {
-  return Math.sqrt(this.getSegmentLengthSquared());
-};
-
-
-/**
- * Computes the interpolation parameter for the point on the line closest to
- * a given point.
- * @param {number|goog.math.Coordinate} x The x coordinate of the point, or
- *     a coordinate object.
- * @param {number=} opt_y The y coordinate of the point - required if x is a
- *     number, ignored if x is a goog.math.Coordinate.
- * @return {number} The interpolation parameter of the point on the line
- *     closest to the given point.
- * @private
- */
-goog.math.Line.prototype.getClosestLinearInterpolation_ = function(x, opt_y) {
-  var y;
-  if (x instanceof goog.math.Coordinate) {
-    y = x.y;
-    x = x.x;
-  } else {
-    y = opt_y;
-  }
-
-  var x0 = this.x0;
-  var y0 = this.y0;
-
-  var xChange = this.x1 - x0;
-  var yChange = this.y1 - y0;
-
-  return ((x - x0) * xChange + (y - y0) * yChange) /
-      this.getSegmentLengthSquared();
-};
-
-
-/**
- * Returns the point on the line segment proportional to t, where for t = 0 we
- * return the starting point and for t = 1 we return the end point.  For t < 0
- * or t > 1 we extrapolate along the line defined by the line segment.
- * @param {number} t The interpolation parameter along the line segment.
- * @return {!goog.math.Coordinate} The point on the line segment at t.
- */
-goog.math.Line.prototype.getInterpolatedPoint = function(t) {
-  return new goog.math.Coordinate(
-      goog.math.lerp(this.x0, this.x1, t),
-      goog.math.lerp(this.y0, this.y1, t));
-};
-
-
-/**
- * Computes the point on the line closest to a given point.  Note that a line
- * in this case is defined as the infinite line going through the start and end
- * points.  To find the closest point on the line segment itself see
- * {@see #getClosestSegmentPoint}.
- * @param {number|goog.math.Coordinate} x The x coordinate of the point, or
- *     a coordinate object.
- * @param {number=} opt_y The y coordinate of the point - required if x is a
- *     number, ignored if x is a goog.math.Coordinate.
- * @return {!goog.math.Coordinate} The point on the line closest to the given
- *     point.
- */
-goog.math.Line.prototype.getClosestPoint = function(x, opt_y) {
-  return this.getInterpolatedPoint(
-      this.getClosestLinearInterpolation_(x, opt_y));
-};
-
-
-/**
- * Computes the point on the line segment closest to a given point.
- * @param {number|goog.math.Coordinate} x The x coordinate of the point, or
- *     a coordinate object.
- * @param {number=} opt_y The y coordinate of the point - required if x is a
- *     number, ignored if x is a goog.math.Coordinate.
- * @return {!goog.math.Coordinate} The point on the line segment closest to the
- *     given point.
- */
-goog.math.Line.prototype.getClosestSegmentPoint = function(x, opt_y) {
-  return this.getInterpolatedPoint(
-      goog.math.clamp(this.getClosestLinearInterpolation_(x, opt_y), 0, 1));
-};