Remove deprecated clampToHeight function signature

CHANGES.md

@@ -6,6 +6,7 @@ Change Log
 ##### Breaking Changes :mega:
 * `Resource.fetchImage` now returns an `ImageBitmap` instead of `Image` when supported. This allows for decoding images while fetching using `createImageBitmap` to greatly speed up texture upload and decrease frame drops when loading models with large textures. [#7579](https://github.com/AnalyticalGraphicsInc/cesium/pull/7579)
 * `Cesium3DTileStyle.style` now has an empty `Object` as its default value, instead of `undefined`. [#7567](https://github.com/AnalyticalGraphicsInc/cesium/issues/7567)
+* `Scene.clampToHeight` now takes an optional `width` argument before the `result` argument.
 
 ##### Deprecated :hourglass_flowing_sand:
 * `Resource.fetchImage` now takes an options object. Use `resource.fetchImage({ preferBlob: true })` instead of `resource.fetchImage(true)`. The previous function definition will no longer work in 1.57. [#7579](https://github.com/AnalyticalGraphicsInc/cesium/pull/7579)

Source/Scene/Scene.js

@@ -14,7 +14,6 @@ define([
         '../Core/defaultValue',
         '../Core/defined',
         '../Core/defineProperties',
-        '../Core/deprecationWarning',
         '../Core/destroyObject',
         '../Core/DeveloperError',
         '../Core/EllipsoidGeometry',
@@ -98,7 +97,6 @@ define([
         defaultValue,
         defined,
         defineProperties,
-        deprecationWarning,
         destroyObject,
         DeveloperError,
         EllipsoidGeometry,
@@ -4233,12 +4231,6 @@ define([
         }
         //>>includeEnd('debug');
 
-        if (width instanceof Cartesian3) {
-            result = width;
-            width = undefined;
-            deprecationWarning('clampToHeight-parameter-change', 'clampToHeight now takes an optional width argument before the result argument in Cesium 1.54.  The previous function definition will no longer work in 1.56.');
-        }
-
         var ray = getRayForClampToHeight(this, cartesian);
         var pickResult = pickFromRay(this, ray, objectsToExclude, width, true, false);
         if (defined(pickResult)) {