reduce duplicate code

Author: Ghost-chu

src/main/java/org/maxgamer/quickshop/command/subcommand/SubCommand_Buy.java

@@ -39,11 +39,6 @@ public class SubCommand_Buy implements CommandHandler<Player> {
     public void onCommand(@NotNull Player sender, @NotNull String commandLabel, @NotNull String[] cmdArg) {
         BlockIterator bIt = new BlockIterator(sender, 10);
 
-        if (!bIt.hasNext()) {
-            plugin.text().of(sender, "not-looking-at-shop").send();
-            return;
-        }
-
         while (bIt.hasNext()) {
             final Block b = bIt.next();
             final Shop shop = plugin.getShopManager().getShop(b.getLocation());

src/main/java/org/maxgamer/quickshop/command/subcommand/SubCommand_Empty.java

@@ -39,11 +39,6 @@ public class SubCommand_Empty implements CommandHandler<Player> {
     public void onCommand(@NotNull Player sender, @NotNull String commandLabel, @NotNull String[] cmdArg) {
         BlockIterator bIt = new BlockIterator(sender, 10);
 
-        if (!bIt.hasNext()) {
-            plugin.text().of(sender, "not-looking-at-shop").send();
-            return;
-        }
-
         while (bIt.hasNext()) {
             final Block b = bIt.next();
             final Shop shop = plugin.getShopManager().getShop(b.getLocation());

src/main/java/org/maxgamer/quickshop/command/subcommand/SubCommand_Item.java

@@ -42,10 +42,6 @@ public class SubCommand_Item implements CommandHandler<Player> {
     public void onCommand(@NotNull Player sender, @NotNull String commandLabel, @NotNull String[] cmdArg) {
         BlockIterator bIt = new BlockIterator(sender, 10);
         // Loop through every block they're looking at upto 10 blocks away
-        if (!bIt.hasNext()) {
-            plugin.text().of(sender, "not-looking-at-shop").send();
-            return;
-        }
         while (bIt.hasNext()) {
             final Block b = bIt.next();
             final Shop shop = plugin.getShopManager().getShop(b.getLocation());

src/main/java/org/maxgamer/quickshop/command/subcommand/SubCommand_Remove.java

@@ -38,11 +38,6 @@ public class SubCommand_Remove implements CommandHandler<Player> {
     public void onCommand(@NotNull Player sender, @NotNull String commandLabel, @NotNull String[] cmdArg) {
         BlockIterator bIt = new BlockIterator(sender, 10);
 
-        if (!bIt.hasNext()) {
-            plugin.text().of(sender, "not-looking-at-shop").send();
-            return;
-        }
-
         while (bIt.hasNext()) {
             final Block b = bIt.next();
             final Shop shop = plugin.getShopManager().getShop(b.getLocation());

src/main/java/org/maxgamer/quickshop/command/subcommand/SubCommand_Sell.java

@@ -39,11 +39,6 @@ public class SubCommand_Sell implements CommandHandler<Player> {
     public void onCommand(@NotNull Player sender, @NotNull String commandLabel, @NotNull String[] cmdArg) {
         BlockIterator bIt = new BlockIterator(sender, 10);
 
-        if (!bIt.hasNext()) {
-            plugin.text().of(sender, "not-looking-at-shop").send();
-            return;
-        }
-
         while (bIt.hasNext()) {
             final Block b = bIt.next();
             final Shop shop = plugin.getShopManager().getShop(b.getLocation());

src/main/java/org/maxgamer/quickshop/command/subcommand/SubCommand_SetOwner.java

@@ -49,11 +49,6 @@ public void onCommand(@NotNull Player sender, @NotNull String commandLabel, @Not
 
         final BlockIterator bIt = new BlockIterator(sender, 10);
 
-        if (!bIt.hasNext()) {
-            plugin.text().of(sender, "not-looking-at-shop").send();
-            return;
-        }
-
         while (bIt.hasNext()) {
             final Block b = bIt.next();
             final Shop shop = plugin.getShopManager().getShop(b.getLocation());

src/main/java/org/maxgamer/quickshop/command/subcommand/SubCommand_Size.java

@@ -56,10 +56,6 @@ public void onCommand(@NotNull Player sender, @NotNull String commandLabel, @Not
         }
         final BlockIterator bIt = new BlockIterator(sender, 10);
         // Loop through every block they're looking at upto 10 blocks away
-        if (!bIt.hasNext()) {
-            plugin.text().of(sender, "not-looking-at-shop").send();
-            return;
-        }
         while (bIt.hasNext()) {
             final Block b = bIt.next();
             final Shop shop = plugin.getShopManager().getShop(b.getLocation());

src/main/java/org/maxgamer/quickshop/command/subcommand/SubCommand_Staff.java

@@ -49,10 +49,6 @@ public class SubCommand_Staff implements CommandHandler<Player> {
     @Override
     public void onCommand(@NotNull Player sender, @NotNull String commandLabel, @NotNull String[] cmdArg) {
         BlockIterator bIt = new BlockIterator(sender, 10);
-        if (!bIt.hasNext()) {
-            plugin.text().of(sender, "not-looking-at-shop").send();
-            return;
-        }
         while (bIt.hasNext()) {
             final Block b = bIt.next();
             final Shop shop = plugin.getShopManager().getShop(b.getLocation());

src/main/java/org/maxgamer/quickshop/command/subcommand/SubCommand_Unlimited.java

@@ -38,11 +38,6 @@ public class SubCommand_Unlimited implements CommandHandler<Player> {
     public void onCommand(@NotNull Player sender, @NotNull String commandLabel, @NotNull String[] cmdArg) {
         BlockIterator bIt = new BlockIterator(sender, 10);
 
-        if (!bIt.hasNext()) {
-            plugin.text().of(sender, "not-looking-at-shop").send();
-            return;
-        }
-
         while (bIt.hasNext()) {
             final Block b = bIt.next();
             final Shop shop = plugin.getShopManager().getShop(b.getLocation());