Adding the missing remove1Missing variable.

Author: renemadsen

eFormAPI/Installation/CustomActions/CustomAction.cs

@@ -660,6 +660,7 @@ private static void AddImageHandlers(string siteName)
                 bool jpgHandlerMissing = true;
                 bool jpegHandlerMissing = true;
                 bool add1Missing = true;
+                bool remove1Missing = true;
                 bool remove2Missing = true;
                 bool remove3Missing = true;
                 //ConfigurationElement toRemoveCe = null;