[module] Remove experimental status for dynamic import API

Bug: v8:5785
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: Ia386725996beb8f47f97930c9dfc8a9639887fea
Reviewed-on: https://chromium-review.googlesource.com/744739Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49045}

include/v8.h

@@ -984,9 +984,6 @@ class V8_EXPORT Data {
 };
 
 /**
- * This is an unfinished experimental feature, and is only exposed
- * here for internal testing purposes. DO NOT USE.
- *
  * A container type that holds relevant metadata for module loading.
  *
  * This is passed back to the embedder as part of
@@ -1008,9 +1005,6 @@ class V8_EXPORT ScriptOrModule {
 };
 
 /**
- * This is an unfinished experimental feature, and is only exposed
- * here for internal testing purposes. DO NOT USE.
- *
  * An array to hold Primitive values. This is used by the embedder to
  * pass host defined options to the ScriptOptions during compilation.
  *
@@ -7112,9 +7106,6 @@ class V8_EXPORT Isolate {
       AbortOnUncaughtExceptionCallback callback);
 
   /**
-   * This is an unfinished experimental feature, and is only exposed
-   * here for internal testing purposes. DO NOT USE.
-   *
    * This specifies the callback called by the upcoming dynamic
    * import() language feature to load modules.
    */