Remove reserve mission's reaction radius bonus

Reserve missions are now useless.  They'll become useful again in a
later commit.

info/Attacking.t

@@ -144,8 +144,8 @@ restrictions apply to reacting land units:
 - The unit must be in range.
 .FI
 If the unit is in a 60% efficient headquarters, then 1 is added to its
-reaction radius.  If it is on "reserve" mission, then 2 is added to
-the radius.  Note that you can limit the reaction radius of your land
+reaction radius.
+Note that you can limit the reaction radius of your land
 units using the "lrange" command.
 .s1
 .L "(5)  Calculate support."

info/mission.t

@@ -289,20 +289,16 @@ lost his planes.
 .s1
 RESERVE MISSIONS (land units only)
 .s1
-A land unit given reserve orders has an increased ability to react to enemy
-attacks. A reserve unit has its reaction radius increased by 2.
-(Note: this is cumulative with the +1 modifier for being at an
-efficient headquarters, so a reserve unit at an HQ would have a +3).
-See info attack for more details on reaction.
+This mission has no effect at this time.
 .s1
-Note that units with a reserve mission retain this status, even though they
-move to the threatened sector and return. This is an exception to the normal
+Note that units with a reserve mission retain this status even when they
+react to a threatened sector and return. This is an exception to the normal
 rules on losing your mission status. If, however, the land unit is forced to
-retreat from the combat (see land combat for details), it WOULD lose its status.
+retreat from the combat (see land combat for details), it DOES lose its status.
 .s1
 When a unit with a reserve mission is listed, the op sector is the sector
 the unit is in, and the radius is the units maximum reaction radius, including
-the bonus for the reserve mission and HQ (if applicable). Note that the unit's
+the bonus for HQ (if applicable). Note that the unit's
 actual radius might be different if it was changed by lrange command.
 .s1
 Note: information gained from planes flying missions is automatically

src/lib/commands/miss.c

@@ -294,20 +294,16 @@ mission(void)
 	       obj_nameof(gp), mission_name(mission),
 	       xyas(x, y, player->cnum), gp->radius);
 	} else if (mission == MI_RESERVE) {
-	    int plus = 2;
-
-	    if (((struct lndstr *)gp)->lnd_rad_max == 0) {
-		plus = 0;
-	    } else {
+	    radius = ((struct lndstr *)gp)->lnd_rad_max;
+	    if (radius) {
 		getsect(gp->x, gp->y, &opsect);
 		if ((opsect.sct_type == SCT_HEADQ)
 		    && (opsect.sct_effic >= 60))
-		    plus++;
-		plus += ((struct lndstr *)gp)->lnd_rad_max;
+		    radius++;
 	    }
 
 	    pr("%s on %s mission with maximum reaction radius %d\n",
-	       obj_nameof(gp), mission_name(mission), plus);
+	       obj_nameof(gp), mission_name(mission), radius);
 	} else if (mission) {
 	    pr("%s on %s mission\n", obj_nameof(gp),
 	       mission_name(mission));

src/lib/subs/attsub.c

@@ -1511,9 +1511,6 @@ att_reacting_units(struct combat *def, struct emp_qelem *list, int a_spy,
 	else
 	    radius = land.lnd_rad_max;
 
-	if (land.lnd_mission == MI_RESERVE)
-	    radius += 2;
-
 	if (dist > radius)
 	    continue;
 

src/lib/subs/mission.c

@@ -797,7 +797,6 @@ show_mission(int type, struct nstr_item *np)
 	    radius = item.land.lnd_rad_max;
 
 	    if (radius) {
-		radius += 2;
 		getsect(gp->x, gp->y, &sect);
 		if ((sect.sct_type == SCT_HEADQ) && (sect.sct_effic >= 60))
 		    radius++;