(plist): Member state is used write-only, remove.

(P_OK, P_FIRED, P_DEL): Unused, remove.

include/plane.h

@@ -129,17 +129,12 @@ struct plchrstr {
 
 struct plist {
     struct emp_qelem queue;	/* list of planes */
-    int state;			/* state of plane */
     int bombs;			/* bombs carried for bombing mission */
     int misc;			/* amount of random item being transported */
     struct plchrstr *pcp;	/* pointer to desc of plane */
     struct plnstr plane;	/* struct plane */
 };
 
-#define	P_OK		0
-#define P_FIRED		1
-#define P_DEL		2
-
 #define getplane(n, p) \
 	ef_read(EF_PLANE, n, p)
 #define putplane(n, p) \

src/lib/subs/aircombat.c

@@ -1077,7 +1077,6 @@ getilist(struct emp_qelem *list, natid own, struct emp_qelem *a,
 	    continue;
 	/* got one! */
 	ip = malloc(sizeof(*ip));
-	ip->state = P_OK;
 	ip->bombs = 0;
 	ip->misc = 0;
 	ip->pcp = &plchr[(int)plane.pln_type];

src/lib/subs/mslsub.c

@@ -199,7 +199,6 @@ msl_sel(struct emp_qelem *list, coord x, coord y, natid victim,
 	    continue;
 	/* got a valid interceptor */
 	irv = malloc(sizeof(*irv));
-	irv->state = P_OK;
 	irv->bombs = 0;
 	irv->misc = 0;
 	irv->pcp = &plchr[(int)plane.pln_type];

src/lib/subs/plnsub.c

@@ -504,7 +504,6 @@ pln_sel(struct nstr_item *ni, struct emp_qelem *list, struct sctstr *ap,
 	plane.pln_mission = 0;
 	putplane(plane.pln_uid, &plane);
 	plp = malloc(sizeof(struct plist));
-	plp->state = P_OK;
 	plp->misc = 0;
 	plp->bombs = 0;
 	plp->pcp = pcp;