Hardcode AbsolutePercentageAgainstPaddingEdge experimental feature to false (#1549)

Summary:
Pull Request resolved: https://github.com/facebook/yoga/pull/1549

X-link: https://github.com/facebook/react-native/pull/42253

This experimental feature is always false, and with the next diff I will be deleting the branch that actually calls into this. Separating this diff out to simplify the review process.

Reviewed By: NickGerleman

Differential Revision: D52705765

fbshipit-source-id: 705f4aa297eae730af9b44753eb01c9dec385dcf

gentest/gentest.js

@@ -8,8 +8,6 @@
 /* eslint-env browser */
 /* global CPPEmitter:readable, JavaEmitter:readable, JavascriptEmitter:readable */
 
-const DEFAULT_EXPERIMENTS = ['AbsolutePercentageAgainstPaddingEdge'];
-
 const INVISIBLE_BORDER_STYLES = ['none', 'initial'];
 
 window.onload = function () {
@@ -723,7 +721,7 @@ function calculateTree(root, parentOffsetLeft, parentOffsetTop) {
       rawStyle: child.getAttribute('style'),
       experiments: child.dataset.experiments
         ? child.dataset.experiments.split(' ')
-        : DEFAULT_EXPERIMENTS,
+        : [],
       disabled: child.dataset.disabled === 'true',
     };