Clean up superfluous includes

src/lib/common/conftab.c

@@ -36,7 +36,6 @@
 #include <stdio.h>
 #include "file.h"
 #include "optlist.h"
-#include "product.h"
 #include "prototypes.h"
 #include "xdump.h"
 

src/lib/common/emp_config.c

@@ -50,7 +50,6 @@
 #include <string.h>
 #include <unistd.h>
 
-#include "file.h"
 #include "misc.h"
 #include "optlist.h"
 #include "prototypes.h"

src/lib/common/file.c

@@ -47,7 +47,6 @@
 #include "file.h"
 #include "match.h"
 #include "misc.h"
-#include "nsc.h"
 #include "prototypes.h"
 
 static int open_locked(char *, int, mode_t);

src/lib/common/game.c

@@ -46,7 +46,6 @@
 #include "file.h"
 #include "game.h"
 #include "optlist.h"
-#include "prototypes.h"
 #include "server.h"
 
 /*

src/lib/common/hap_fact.c

@@ -34,8 +34,6 @@
 
 #include "misc.h"
 #include "nat.h"
-#include "nsc.h"
-#include "player.h"
 #include "prototypes.h"
 #include "xy.h"
 

src/lib/common/res_pop.c

@@ -35,7 +35,6 @@
 
 #include "item.h"
 #include "misc.h"
-#include "nat.h"
 #include "optlist.h"
 #include "prototypes.h"
 #include "sect.h"