MODWRKFLOW-54: Remove unnecessary exceptions being thrown reported by SonarQube.

SonarQube java:S1130.

Author: kaladay

service/src/main/java/org/folio/rest/workflow/service/OkapiDiscoveryService.java

@@ -2,7 +2,6 @@
 
 import static org.springframework.http.HttpMethod.GET;
 
-import java.io.IOException;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
@@ -52,7 +51,7 @@ public OkapiDiscoveryService(HttpService httpService, ObjectMapper objectMapper)
     this.objectMapper = objectMapper;
   }
 
-  public List<Action> getActionsByTenant(String tenant) throws IOException {
+  public List<Action> getActionsByTenant(String tenant) {
     List<Action> actions = new ArrayList<>();
     JsonNode modulesNode = getModules(tenant);
     for (JsonNode moduleNode : modulesNode) {

service/src/test/java/org/folio/rest/workflow/service/OkapiDiscoveryServiceWithDefaultPropertiesTest.java

@@ -6,7 +6,6 @@
 import static org.mockito.ArgumentMatchers.anyString;
 import static org.mockito.Mockito.when;
 
-import java.io.IOException;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
@@ -60,7 +59,7 @@ class OkapiDiscoveryServiceWithDefaultPropertiesTest {
   protected Iterator<JsonNode> mockProvidesIter;
 
   @Test
-  void getHandlersWorksWithNoProvidesTest() throws IOException {
+  void getHandlersWorksWithNoProvidesTest() {
     mockJsonResponseEntity(mockJsonNode, 200);
 
     when(mockJsonNode.get(PROVIDES)).thenReturn(mockInterfaceNode);
@@ -73,7 +72,7 @@ void getHandlersWorksWithNoProvidesTest() throws IOException {
   }
 
   @Test
-  void getHandlersWorksWithNullProvidesTest() throws IOException {
+  void getHandlersWorksWithNullProvidesTest() {
     mockJsonResponseEntity(mockJsonNode, 200);
     when(mockJsonNode.get(PROVIDES)).thenReturn(null);