Unlock mat_picmip cvar for values lower than -1

engine/host.cpp

@@ -2750,10 +2750,6 @@ void CheckSpecialCheatVars()
 	if ( !mat_picmip )
 		mat_picmip = g_pCVar->FindVar( "mat_picmip" );
 
-	// In multiplayer, don't allow them to set mat_picmip > 2.	
-	if ( mat_picmip )
-		CheckVarRange_Generic( mat_picmip, -1, 2 );
-	
 	CheckVarRange_r_rootlod();
 	CheckVarRange_r_lod();
 	HandleServerAllowColorCorrection();