Add support for 1.7

docs/examples/java/sites/delete-variable.md

@@ -0,0 +1,24 @@
+import io.appwrite.Client;
+import io.appwrite.coroutines.CoroutineCallback;
+import io.appwrite.services.Sites;
+
+Client client = new Client()
+    .setEndpoint("https://<REGION>.cloud.appwrite.io/v1") // Your API Endpoint
+    .setProject("<YOUR_PROJECT_ID>") // Your project ID
+    .setKey("<YOUR_API_KEY>"); // Your secret API key
+
+Sites sites = new Sites(client);
+
+sites.deleteVariable(
+    "<SITE_ID>", // siteId
+    "<VARIABLE_ID>", // variableId
+    new CoroutineCallback<>((result, error) -> {
+        if (error != null) {
+            error.printStackTrace();
+            return;
+        }
+
+        System.out.println(result);
+    })
+);
+