Fix detection following @bwatters-r7 recommendations. Remove safesync exploit that shouldn't be here.

Author: qkaiser

modules/exploits/linux/http/trendmicro_safesync_exec.rb

@@ -82,7 +82,7 @@ def check
         end
       end
     end
-    Exploit::CheckCode::Safe
+    Exploit::CheckCode::Unknown
   end