Remove unused import, update default application.yml with security co…

…nfig.

src/main/resources/application.yml

@@ -41,9 +41,9 @@ spring:
 javamelody:
     init-parameters:
         authorized-users: admin:kral0vnat3rm1t1st3
-keycloak:
-    enabled: false
 termit:
+    security:
+        provider: "internal"
     repository:
         url: http://localhost:7200/repositories/termit
         # if empty, repository.url will be used

src/test/java/cz/cvut/kbss/termit/service/security/SecurityUtilsTest.java

@@ -39,7 +39,6 @@
 import org.springframework.security.core.userdetails.UserDetailsService;
 import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
 import org.springframework.security.crypto.password.PasswordEncoder;
-import org.springframework.security.oauth2.core.oidc.OidcUserInfo;
 import org.springframework.security.oauth2.jwt.Jwt;
 import org.springframework.security.oauth2.server.resource.authentication.JwtAuthenticationToken;
 
@@ -48,7 +47,10 @@
 
 import static org.hamcrest.MatcherAssert.assertThat;
 import static org.hamcrest.Matchers.containsString;
-import static org.junit.jupiter.api.Assertions.*;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 import static org.mockito.Mockito.when;
 
 @ExtendWith(MockitoExtension.class)