[Add] Clean up pilot hooks when freeing pilot.

[Remove] Removed unused jump hook for player that collided with pilot
hook.

src/pilot.c

@@ -1474,6 +1474,14 @@ Pilot* pilot_copy(Pilot* src) {
  *    @param p Pilot to free.
  */
 void pilot_free(Pilot* p) {
+  int i;
+
+  /* Clear up pilot hooks. */
+  for(i = 0; i < PILOT_HOOKS; i++)
+    if(p->hook_type[i] != PILOT_HOOK_NONE)
+      hook_rm(p->hook[i]);
+
+  /* Clean up data. */
   if(p->ai != NULL)
     ai_destroy(p); /* Must be destroyed first if applicable. */
   if(player == p) player = NULL;

src/player.c

@@ -1895,7 +1895,6 @@ void player_brokeHyperspace(void) {
   }
   
   /* Run the jump hooks. */
-  hooks_run("jump");
   hooks_run("enter");
 
   player_message("BANG!");