Removed code duplication for Guild Skills (#3633)

* Fixes #3682.
* Remove code duplication for Guild Skills: Battle Orders, Regeneration and Restore.
Thanks to @vykimo!

src/map/skill.cpp

@@ -8810,37 +8810,15 @@ int skill_castend_nodamage_id (struct block_list *src, struct block_list *bl, ui
 
 	// New guild skills [Celest]
 	case GD_BATTLEORDER:
-		if(flag&1) {
-			if (status_get_guild_id(src) == status_get_guild_id(bl))
-				sc_start(src,bl,type,100,skill_lv,skill_get_time(skill_id, skill_lv));
-		} else if (status_get_guild_id(src)) {
-			clif_skill_nodamage(src,bl,skill_id,skill_lv,1);
-			map_foreachinallrange(skill_area_sub, src,
-				skill_get_splash(skill_id, skill_lv), BL_PC,
-				src,skill_id,skill_lv,tick, flag|BCT_GUILD|1,
-				skill_castend_nodamage_id);
-			if (sd)
-				guild_block_skill(sd,skill_get_time2(skill_id,skill_lv));
-		}
-		break;
 	case GD_REGENERATION:
-		if(flag&1) {
-			if (status_get_guild_id(src) == status_get_guild_id(bl))
-				sc_start(src,bl,type,100,skill_lv,skill_get_time(skill_id, skill_lv));
-		} else if (status_get_guild_id(src)) {
-			clif_skill_nodamage(src,bl,skill_id,skill_lv,1);
-			map_foreachinallrange(skill_area_sub, src,
-				skill_get_splash(skill_id, skill_lv), BL_PC,
-				src,skill_id,skill_lv,tick, flag|BCT_GUILD|1,
-				skill_castend_nodamage_id);
-			if (sd)
-				guild_block_skill(sd,skill_get_time2(skill_id,skill_lv));
-		}
-		break;
 	case GD_RESTORE:
 		if(flag&1) {
-			if (status_get_guild_id(src) == status_get_guild_id(bl))
-				clif_skill_nodamage(src,bl,AL_HEAL,status_percent_heal(bl,90,90),1);
+			if (status_get_guild_id(src) == status_get_guild_id(bl)) {				
+				if( skill_id == GD_RESTORE )
+					clif_skill_nodamage(src,bl,AL_HEAL,status_percent_heal(bl,90,90),1);
+				else
+					sc_start(src,bl,type,100,skill_lv,skill_get_time(skill_id, skill_lv));
+			}
 		} else if (status_get_guild_id(src)) {
 			clif_skill_nodamage(src,bl,skill_id,skill_lv,1);
 			map_foreachinallrange(skill_area_sub, src,