Remove MD2 model support

Totally unused in-game, MD3 and MD5 formats are probably better
supported as well

Author: voidanix

src/cmake/build_client.cmake

@@ -49,7 +49,6 @@ if(BUILD_CLIENT)
         engine/lensflare.h
         engine/lightmap.h
         engine/lightning.h
-        engine/md2.h
         engine/md3.h
         engine/md5.h
         engine/model.h

src/engine/md2.h

@@ -1,6 +1,6 @@
 #ifndef MODEL_H
 #define MODEL_H
-enum { MDL_MD2 = 0, MDL_MD3, MDL_MD5, MDL_OBJ, MDL_SMD, MDL_IQM, NUMMODELTYPES };
+enum { MDL_MD3 = 0, MDL_MD5, MDL_OBJ, MDL_SMD, MDL_IQM, NUMMODELTYPES };
 
 struct model
 {

src/engine/model.h

@@ -25,14 +25,12 @@ static model *__loadmodel__##modelclass(const char *filename) \
 } \
 UNUSED static int __dummy__##modelclass = addmodeltype((modeltype), __loadmodel__##modelclass);
 
-#include "md2.h"
 #include "md3.h"
 #include "md5.h"
 #include "obj.h"
 #include "smd.h"
 #include "iqm.h"
 
-MODELTYPE(MDL_MD2, md2);
 MODELTYPE(MDL_MD3, md3);
 MODELTYPE(MDL_MD5, md5);
 MODELTYPE(MDL_OBJ, obj);