Remove block type enum from Otherlevel.h

I have no idea why this is here. It should already be included from
Entity.h, anyway. There's no reason to copy-paste it.

desktop_version/src/Otherlevel.h

@@ -16,16 +16,6 @@ struct Roomtext
 class otherlevelclass
 {
 public:
-    enum
-    {
-        BLOCK = 0,
-        TRIGGER,
-        DAMAGE,
-        DIRECTIONAL,
-        SAFE,
-        ACTIVITY
-    };
-
     const int* loadlevel(int rx, int ry);
 
     std::string roomname;