Make REINCARNATION unconditional.

There is a lot of code affected by this, and Pat Rankin correctly
observes that it would be better to store roguelike as a level flag
rather than just using Is_rogue_level. A note for the future.

src/mkobj.c

@@ -52,7 +52,6 @@ const struct icp boxiprobs[] = {
 { 1, AMULET_CLASS}
 };
 
-#ifdef REINCARNATION
 const struct icp rogueprobs[] = {
 {12, WEAPON_CLASS},
 {12, ARMOR_CLASS},
@@ -62,7 +61,6 @@ const struct icp rogueprobs[] = {
 { 5, WAND_CLASS},
 { 5, RING_CLASS}
 };
-#endif
 
 const struct icp hellprobs[] = {
 {20, WEAPON_CLASS},
@@ -222,10 +220,8 @@ boolean artif;
 
 	if(oclass == RANDOM_CLASS) {
 		const struct icp *iprobs =
-#ifdef REINCARNATION
 				    (Is_rogue_level(&u.uz)) ?
 				    (const struct icp *)rogueprobs :
-#endif
 				    Inhell ? (const struct icp *)hellprobs :
 				    (const struct icp *)mkobjprobs;