[Shopify] Do not create Shopify Customer for the company if it exists (#5769)

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#### Summary <!-- Provide a general summary of your changes -->
Do not create Shopify Customer for the company if it exists
Also removed an internal ishandled event :)

#### Work Item(s) <!-- Add the issue number here after the #. The issue
needs to be open and approved. Submitting PRs with no linked issues or
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Fixes
[AB#615837](https://dynamicssmb2.visualstudio.com/1fcb79e7-ab07-432a-a3c6-6cf5a88ba4a5/_workitems/edit/615837)
Fixes
[AB#615851](https://dynamicssmb2.visualstudio.com/1fcb79e7-ab07-432a-a3c6-6cf5a88ba4a5/_workitems/edit/615851)

Author: onbuyuka

src/Apps/W1/Shopify/App/src/Customers/Codeunits/ShpfyCreateCustomer.Codeunit.al

@@ -172,9 +172,11 @@ codeunit 30110 "Shpfy Create Customer"
 
         Customer.Modify();
 
-        ShopifyCustomer.Copy(TempShopifyCustomer);
-        ShopifyCustomer."Customer SystemId" := Customer.SystemId;
-        ShopifyCustomer.Insert();
+        if not ShopifyCustomer.Get(TempShopifyCustomer.Id) then begin
+            ShopifyCustomer.Copy(TempShopifyCustomer);
+            ShopifyCustomer."Customer SystemId" := Customer.SystemId;
+            ShopifyCustomer.Insert();
+        end;
 
         ShopifyCompany."Customer SystemId" := Customer.SystemId;
         ShopifyCompany."Main Contact Customer Id" := ShopifyCustomer.Id;

src/Apps/W1/Shopify/App/src/Order handling/Codeunits/ShpfyImportOrder.Codeunit.al

@@ -639,11 +639,8 @@ codeunit 30161 "Shpfy Import Order"
         Currency: Record Currency;
         GeneralLedgerSetup: Record "General Ledger Setup";
         CurrencyCode: Code[10];
-        IsHandled: Boolean;
     begin
-        OrderEvents.OnBeforeTranslateCurrencyCode(ShopifyCurrencyCode, CurrencyCode, IsHandled);
-        if not IsHandled then
-            Currency.SetLoadFields(Code);
+        Currency.SetLoadFields(Code);
         Currency.SetRange("ISO Code", CopyStr(ShopifyCurrencyCode, 1, 3));
         if Currency.FindFirst() then
             CurrencyCode := Currency.Code;

src/Apps/W1/Shopify/App/src/Order handling/Codeunits/ShpfyOrderEvents.Codeunit.al

@@ -204,11 +204,6 @@ codeunit 30162 "Shpfy Order Events"
     begin
     end;
 
-    [InternalEvent(false)]
-    internal procedure OnBeforeTranslateCurrencyCode(ShopifyCurrencyCode: Text; var CurrencyCode: Code[10]; var IsHandled: Boolean)
-    begin
-    end;
-
     [InternalEvent(false)]
     internal procedure OnBeforeConvertToFinancialStatus(Value: Text; var ShpfyFinancialStatus: Enum "Shpfy Financial Status"; var IsHandled: Boolean)
     begin