Revert "Update GutenbergContainerFragment.java"

This reverts commit dfccdf8.

libs/editor/src/main/java/org/wordpress/android/editor/gutenberg/GutenbergContainerFragment.java

@@ -315,7 +315,7 @@ public void updateCapabilities(GutenbergPropsBuilder gutenbergPropsBuilder) {
         // We want to make sure that activity isn't null
         // as it can make this crash to happen: https://github.com/wordpress-mobile/WordPress-Android/issues/13248
         final Activity activity = getActivity();
-        if (activity != null && gutenbergPropsBuilder != null) {
+        if (activity != null) {
             GutenbergProps gutenbergProps = gutenbergPropsBuilder.build(activity, mHtmlModeEnabled);
             mWPAndroidGlueCode.updateCapabilities(gutenbergProps);
         }