manifest: remove unnecessary stuff

manifest.json.php

@@ -10,8 +10,6 @@
       "functions.js",
       "offline.js",
       "tt-rss.js",
-      "images/art-inline.png",
-      "images/art-zoom.png",
       "images/blank_icon.gif",
       "images/button.png",
       "images/c1.png",
@@ -20,36 +18,17 @@
       "images/c4.png",
       "images/cat-collapse.png",
       "images/down_arrow.png",
-      "images/favicon.png",
-      "images/feed-icon-12x12.png",
-      "images/feed-icon-64x64.png",
       "images/footer.png",
-      "images/fresh_new.png",
       "images/fresh.png",
       "images/indicator_white.gif",
       "images/label.png",
-      "images/mark_set.gif",
       "images/mark_set.png",
-      "images/mark_unset.gif",
       "images/mark_unset.png",
-      "images/new_version.png",
-      "images/offline.png",
-      "images/offline-sync.gif",
       "images/online.png",
       "images/overlay.png",
-      "images/piggie_icon.png",
-      "images/piggie.png",
-      "images/prefs-content.png",
-      "images/pub_set.gif",
-      "images/pub_unset.gif",
       "images/resize_handle_horiz.png",
       "images/resize_horiz.png",
       "images/resizer.png",
-      "images/score_half_high.png",
-      "images/score_half_low.png",
-      "images/score_high.png",
-      "images/score_low.png",
-      "images/score_neutral.png",
       "images/shadow_dark.png",
       "images/shadow-grid.gif",
       "images/shadow.png",
@@ -60,14 +39,7 @@
       "images/small_question.png",
       "images/tag.png",
       "images/toolbar.png",
-      "images/ttrss_logo_big.png",
-      "images/ttrss_logo_blackred.png",
       "images/ttrss_logo.png",
-      "images/ttrss_logo_small.png",
-      "images/updated.png",
-      "images/www.png",
-      "extras/button/musicplayer_f6.swf",
-      "extras/button/musicplayer.swf",
       "lib/scriptaculous/effects.js",
       "lib/scriptaculous/controls.js",
       "lib/scriptaculous/dragdrop.js",