Remove Region.IN enum value and related tests

Agent-Logs-Url: https://github.com/Adyen/adyen-java-api-library/sessions/4aa301be-a8b2-4ca3-843f-b2e851f7cbe4

Co-authored-by: gcatanese <1771700+gcatanese@users.noreply.github.com>

Author: Copilot

src/main/java/com/adyen/enums/Region.java

@@ -14,9 +14,6 @@ public enum Region {
   /** United States region */
   US,
 
-  /** India region */
-  IN,
-
   /** Asia-Pacific, South East region */
   APSE;
 

src/test/java/com/adyen/RegionTest.java

@@ -20,7 +20,7 @@ public void testValidRegions() {
             .collect(Collectors.toList());
 
     // Define the expected list of valid regions
-    List<String> expected = List.of("eu", "au", "us", "in", "apse");
+    List<String> expected = List.of("eu", "au", "us", "apse");
 
     // Assert that the VALID_REGIONS in Region matches the expected list
     assertEquals(expected, actual);

src/test/java/com/adyen/httpclient/ClientTest.java

@@ -115,15 +115,6 @@ public void testGetCloudEndpointForLiveEnvironment(
     assertEquals(expectedEndpoint, config.getTerminalApiCloudEndpoint());
   }
 
-  @Test
-  public void testUnmappedIndiaRegionThrowsException() {
-    Config config = new Config();
-    config.setEnvironment(Environment.LIVE);
-    config.setTerminalApiRegion(Region.IN);
-
-    Assertions.assertThrows(IllegalArgumentException.class, () -> new Client(config));
-  }
-
   @Test
   public void testClientCertificateAuth() {
     Client client = new Client(clientCertificateAuthSSLContext, "Your-X-API-KEY");