Revert "api: get flavor image from plugin-processed content"

This reverts commit a4604e892c.

classes/api.php

@@ -778,23 +778,20 @@ class API extends Handler {
 
 					$hook_object = ["headline" => &$headline_row];
 
-					if ($show_content) {
-						PluginHost::getInstance()->chain_hooks_callback(PluginHost::HOOK_RENDER_ARTICLE_API,
-							function ($result) use (&$headline_row) {
-								$headline_row = $result;
-							},
-							$hook_object);
+					PluginHost::getInstance()->chain_hooks_callback(PluginHost::HOOK_RENDER_ARTICLE_API,
+						function ($result) use (&$headline_row) {
+							$headline_row = $result;
+						},
+						$hook_object);
 
-						list ($flavor_image, $flavor_stream, $flavor_kind) = Article::get_article_image($enclosures,
-							$headline_row["content"], $line["site_url"]);
+					list ($flavor_image, $flavor_stream, $flavor_kind) = Article::get_article_image($enclosures, $line["content"], $line["site_url"]);
 
-						$headline_row["flavor_image"] = $flavor_image;
-						$headline_row["flavor_stream"] = $flavor_stream;
+					$headline_row["flavor_image"] = $flavor_image;
+					$headline_row["flavor_stream"] = $flavor_stream;
 
-						/* optional */
-						if ($flavor_kind)
-							$headline_row["flavor_kind"] = $flavor_kind;
-					}
+					/* optional */
+					if ($flavor_kind)
+						$headline_row["flavor_kind"] = $flavor_kind;
 
 					array_push($headlines, $headline_row);
 				}