[shotwell] Remove generic-plugin icon

[Jens Georg <jensgeorg src gnome org>]

commit 617e93e74683ffb097564de2ff80a3580bcbfd94
Author: Jens Georg <mail jensge org>
Date:   Sun Apr 15 20:25:05 2018 +0200

    Remove generic-plugin icon

 icons/generic-plugin.png         |  Bin 3451 -> 0 bytes
 org.gnome.Shotwell.gresource.xml |    1 -
 src/Resources.vala               |    2 +-
 3 files changed, 1 insertions(+), 2 deletions(-)
---
diff --git a/org.gnome.Shotwell.gresource.xml b/org.gnome.Shotwell.gresource.xml
index 90635fa..6928ddd 100644
--- a/org.gnome.Shotwell.gresource.xml
+++ b/org.gnome.Shotwell.gresource.xml
@@ -44,7 +44,6 @@
       <file>icons/filter-raw-disabled-symbolic.svg</file>
       <file>icons/filter-videos-disabled-symbolic.svg</file>
       <file>icons/filter-videos-symbolic.svg</file>
-      <file>icons/generic-plugin.png</file>
       <file>icons/image-crop-symbolic.svg</file>
       <file>icons/image-auto-adjust-symbolic.svg</file>
       <file>icons/image-adjust-color-symbolic.svg</file>
diff --git a/src/Resources.vala b/src/Resources.vala
index 6592f2a..937dd12 100644
--- a/src/Resources.vala
+++ b/src/Resources.vala
@@ -82,7 +82,7 @@ along with Shotwell; if not, write to the Free Software Foundation, Inc.,
 
     //public const string ICON_ABOUT_LOGO = "shotwell-street.jpg";
     public const string ICON_ABOUT_LOGO = "about-braunschweig.jpg";
-    public const string ICON_GENERIC_PLUGIN = "generic-plugin.png";
+    public const string ICON_GENERIC_PLUGIN = "application-x-addon-symbolic";
     public const string ICON_SLIDESHOW_EXTENSION_POINT = "slideshow-extension-point";
     public const int ICON_FILTER_REJECTED_OR_BETTER_FIXED_SIZE = 32;
     public const int ICON_FILTER_UNRATED_OR_BETTER_FIXED_SIZE = 16;