Remove redundant throws clauses

Removes exceptions that are declared in a method's signature but never thrown by the method itself or its implementations/derivatives.

itest/web/src/integration-test/java/org/springframework/security/integration/AbstractWebServerIntegrationTests.java

@@ -42,7 +42,7 @@ public abstract class AbstractWebServerIntegrationTests {
 		}
 	}
 
-	protected final MockMvc createMockMvc(String... configLocations) throws Exception {
+	protected final MockMvc createMockMvc(String... configLocations) {
 		if (this.context != null) {
 			throw new IllegalStateException("context is already loaded");
 		}

itest/web/src/main/java/org/springframework/security/itest/web/TestController.java

@@ -26,7 +26,7 @@ import org.springframework.web.bind.annotation.RestController;
 public class TestController {
 
 	@RequestMapping(value = "/secure/file?with?special?chars.htm", method = RequestMethod.GET)
-	public String sec1255TestUrl() throws IOException {
+	public String sec1255TestUrl() {
 		return "I'm file?with?special?chars.htm";
 	}