Remove backport and overrides for M2.3.1 compatibility

Author: Ilja Lapkovskis

README.md

@@ -3,82 +3,10 @@
 **CustomerGraphQl** provides type and resolver information for the GraphQl module
 to generate customer information endpoints. 
 
-This module implements the M2 dev customer endpoints and provides new.
+This module extends the M2 GraphQl customer queries and mutations. 
 New endpoints will be documented in future releases.
 
-Modules is divided in two parts:
-- `overwrite` – simply overwrites M2 core files with M2 dev customer account features
-- `src` – the ScandiPWA module with updated GraphQL schema and new Resolver for new fields.
-
-## Custom endpoint documentation
-
-### Mutation `createCustomer`
-
-Here is an example use of it:
-
- ```graphql
-mutation CreateCustomer(
-    $firstname: String!
-    $password: String!
-    $lastname: String!
-    $email: String!
-    $addresses: [CreateCustomerAddressInput!]
-) {
-    createCustomer(
-        customer: {
-            firstname: $firstname
-            lastname: $lastname
-            email: $email
-            addresses: $addresses
-        }
-        password: $password
-    ) {
-        status
-        token
-        customer {
-            id
-            firstname
-            lastname
-            email
-            is_subscribed
-            addresses {
-                city
-                country_id
-                street
-                telephone
-                firstname
-                lastname
-                postcode
-                street
-                default_shipping
-                default_billing
-            }
-        }
-    }
-}
-```
-
-The variables for input above might look like:
-
-```json
-{
-    "firstname": "Alfred",
-    "lastname": "Genkin",
-    "email": "[email protected]",
-    "password": "Testing123_",
-    "addresses": [
-        {
-            "firstname": "Alfreds",
-            "lastname": "Genkins",
-            "telephone": "22522240",
-            "country_id": "US",
-            "city": "My awesome city",      
-            "street": [ "My cool street 11" ],
-            "postcode": "My awesome US postal code"
-        }
-    ]
-}
-```
+## Custom query documentation
 
 ### Mutation `forgotPassword`
 
@@ -200,4 +128,4 @@ The variables for input above might look like:
 {
     "email": "[email protected]"
 }
-```
+```

composer.json

@@ -3,10 +3,7 @@
   "description": "N/A",
   "type": "magento2-module",
   "require": {
-      "magento/product-community-edition": "2.3.0"
-  },
-  "suggest": {
-    "magento/module-graph-ql": "*"
+      "magento/product-community-edition": "2.3.1"
   },
   "license": [
     "OSL-3.0",
@@ -17,7 +14,6 @@
       "src/registration.php"
     ],
     "psr-4": {
-      "Magento\\CustomerGraphQl\\": "overwrite",
       "ScandiPWA\\CustomerGraphQl\\": "src"
     }
   }